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Nuts
109
DimensionsMechanical and Performance Requirements
Machine Screw NutsHex ....................................................................... 110Square .................................................................. 110Small Pattern Hex ................................................ 111
Finished Hex NutsGrade 2 ......................................................... 112-113Hot Dip Galvanized ..................................... 112-113Stainless, 18-8 & 316 ................................... 112-113Grade 5 ......................................................... 114-115Grade 8 ......................................................... 114-115
Heavy Hex, Steel & Stainless ............................. 116-117
Hex Jam, Steel & Stainless ......................................... 118
K-Lock ........................................................................ 119
Automation Style LockGrade GT ............................................................. 120Grade C ........................................................ 120-121
Serrated Hex Flange Lock .......................................... 122
Large Flange, Grade F ................................................ 123
Hex Cap NutsOne Piece, Low Crown ........................................ 124Two Piece ............................................................. 124Open Ended .......................................................... 125
Two Way Reversible Lock .......................................... 126
Nylon Insert Stop NutsLight Hex, Grade 8............................................... 127Standard Pattern ................................................... 128Thin Pattern .......................................................... 129Heavy Hex ............................................................ 130Heavy Hex, Thin Pattern ...................................... 131
DimensionsMechanical and Performance Requirements
FLEXLOC® NutsLight Hex, Full Height ......................................... 132Light Hex, Thin Height ........................................ 133Heavy Hex, Full Height ....................................... 134Heavy Hex, Thin Height ...................................... 135
Slotted Hex Nuts ......................................................... 136
Hex Castle Nuts .......................................................... 137
Hex Panel Nuts ........................................................... 138
Tee Nuts ...................................................................... 139
Wing NutsCold Forged .......................................................... 140Stamped................................................................ 141Washer Based ....................................................... 142
Conduit Lock Nut ....................................................... 143
Square NutsHeavy ................................................................... 144Regular ................................................................. 145
Spring NutsFlat Type............................................................... 146“J” Type ................................................................ 147“U” Type .............................................................. 148
Self Clinching ............................................................. 149
Hex Coupling .............................................................. 150
Internal Thread Dimensions ............................... 151-152
®FLEXLOC is a registered trademark of SPS Technologies, Inc.. Kanebridge’s lock nuts are not manufactured by or connected with the producers of FLEXLOC® nuts.
Nuts
110
H
G
F H
F
G
Machine Screw Nuts Hex &Square
SQUARE AND HEX MACHINE SCREW NUTS ANSI/ASME B18.6.3
Nominal Size or BasicThread Diameter
F G G1 H
Width Across FlatsWidth Across Corners
ThicknessSquare Hex
Basic Max Min Max Min Max Min Max Min
0 0.0600 5/32 0.156 0.150 0.221 0.206 0.180 0.171 0.050 0.043
1 0.0730 5/32 0.156 0.150 0.221 0.206 0.180 0.171 0.050 0.043
2 0.0860 3/16 0.188 0.180 0.265 0.247 0.217 0.205 0.066 0.057
3 0.0990 3/16 0.188 0.180 0.265 0.247 0.217 0.205 0.066 0.057
4 0.1120 1/4 0.250 0.241 0.354 0.331 0.289 0.275 0.098 0.087
5 0.1250 5/16 0.312 0.302 0.442 0.415 0.361 0.344 0.114 0.102
6 0.1380 5/16 0.312 0.302 0.442 0.415 0.361 0.344 0.114 0.102
8 0.1640 11/32 0.344 0.332 0.486 0.456 0.397 0.378 0.130 0.117
10 0.1900 3/8 0.375 0.362 0.530 0.497 0.433 0.413 0.130 0.117
12 0.2160 7/16 0.438 0.423 0.619 0.581 0.505 0.482 0.161 0.148
1/4 0.2500 7/16 0.438 0.423 0.619 0.581 0.505 0.482 0.193 0.178
5/16 0.3125 9/16 0.562 0.545 0.795 0.748 0.650 0.621 0.225 0.208
3/8 0.3750 5/8 0.625 0.607 0.884 0.833 0.722 0.692 0.257 0.239
DescriptionHex Machine Screw Nut: A six-sided internally threaded fastener with flat tops and chamfered corners. Threads shall be
Unified Standard, Class 2B.Square Machine Screw Nut: A four-sided, internally threaded fastener, tops and bottoms flat, without chamfer. Threads shall
be Unified coarse thread, Class 2B.
Applications/Advantages
Hex Machine Screw Nut: Designed to be used specifically with machine screws. Stainless nuts are used with stainlessmachine screws where parts are subject to corrosive conditions.
Square Machine Screw Nut: Offers a greater bearing surface for wrenching.
Material Steel: Any low carbon steelStainless: 18-8 stainless steel
Plating See Appendix-A for plating information.
Nuts
111
G1
F
H
Machine Screw NutsSmallPattern
Description Similar in design to standard hex machine screw nuts but with smaller widths across the flats and across the corners.
Applications/Advantages
Designed to be used with machine screws in areas where there is limited space for wrenching. Stainless nuts are used withstainless machine screws where parts are subject to corrosive conditions.
Material Steel: Any low carbon steelStainless: 18-8 stainless steel
Plating See Appendix-A for information about the plating of steel machine screw nuts..
SMALL PATTERN HEX MACHINE SCREW NUTSANSI/ASME
B18.6.3
Nominal Size or BasicThread Diameter
F G1 H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Max Min
4 0.1120 3/16 0.188 0.180 0.217 0.205 0.066 0.057
5 0.1250 1/4 0.250 0.241 0.289 0.275 0.098 0.087
6 0.1380 1/4 0.250 0.241 0.289 0.275 0.098 0.087
8 0.1640 1/4 0.250 0.241 0.289 0.275 0.098 0.087
8 0.1640 5/16 0.312 0.302 0.361 0.344 0.114 0.102
10 0.1900 1/4 0.250 0.241 0.289 0.275 0.098 0.087
10 0.1900 5/16 0.312 0.302 0.361 0.344 0.114 0.102
Nuts
112
H
G
F
Finished Hex DimensionalInformation
FINISHED HEX NUTS ANSI/ASME B18.2.2
Nominal or Basic MajorDiameter of Thread
F G H
Width Across Flats Width Across Corners Thickness of Hex Nuts
Basic Max Min Max Min Basic Max Min
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 1-11/64 1.206 1.138
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.245
1-5/8 1.6250 2-7/16 2.438 2.356 2.815 2.686 1-25/64 1.429 1.353
1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 1-1/2 1.540 1.460
2 2.0000 3 3.000 2.900 3.464 3.306 1-23/32 1.763 1.675
2-1/4 2.2500 3-3/8 3.375 3.263 3.897 3.719 1-15/16 1.986 1.890
2-1/2 2.5000 3-3/4 3.750 3.625 4.330 4.133 2-5/32 2.209 2.105
2-3/4 2.7500 4-1/8 4.125 3.988 4.763 4.546 2-3/8 2.431 2.319
3 3.0000 4-1/2 4.500 4.350 5.196 4.959 2-19/32 2.654 2.534
Nuts
113
GRADE-2
STEEL HOT-DIP GALVANIZED
STAINLESS STEEL, 18-8 & 316
Finished HexGrade-2, Steel Hot-DipGalvanized & Stainless
Description A six-sided internally threaded fastener whose thickness is .875 D where D is the nominal nut size and 1.5D is their width across the flats,made from low carbon steel.
Applications/Advantages
The most versatile and widely used nut design. Grade-2 nuts are for use with any low carbon bolt or screw that is not heat-treated, with aspecified minimum tensile strength of 74,000 psi or less.
Material Grade-2 nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements-- Carbon: 0.47%maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum.
Hardness Rockwell B68 - C32
Proof Load Coarse thread: 90,000 psi.; Fine thread: 80,000 psi.
Plating See Appendix-A for information on the plating of steel finished hex nuts.
Description A six-sided internally threaded fastener whose thickness is .875 D where D is the nominal nut size and 1.5D is their width across the flats,made from low carbon steel with a galvanic zinc coating.
Applications/Advantages
Designed for use with low carbon bolts and screws with a specified minimum tensile strength of 74,000 psi or less, which are subjectedto moisture, salt and other such corrosive conditions.
Material Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements-- Carbon: 0.47%maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum.
Hardness Rockwell B68 - C32
Proof Load Coarse thread: 68,000 psi.; Fine thread: 60,000 psi.
Plating See Appendix-A for information on the plating of steel finished hex nuts.
Description Six-sided internally threaded fasteners whose thickness is .875 D where D is the nominal nut size and 1.5D is their width across the flats,made from austenitic alloys as described below.
Applications/Advantages
Designed for use with stainless steel bolts and screws with a specified minimum tensile strength equal to or less than the specified proofstress of the mating nut. Both types of stainless are corrosion resistant with 316 stainless having greater such resistance as well as
superior strength at raised temperatures.
Material18-8: Nuts shall be made from one of the following austenitic alloys: 303, 303Se, 304, XM7, all of which are characterized as having a
chromium content of 18% and nickel content of 8-10%.316: Nuts shall be made from 316 stainless steel, an austenitic alloy which differs from 18-8 by its molybdenum content (2-3%) and a
higher nickel content (10-14%).
HeatTreatment
The austenitic alloys develop their strength through work hardening during the fastener manufacturing process, as seen from the hardnessproperties below. The only heat treatment normally available on austenitic stainless alloys is annealing, which is done at approximately
19000F to a dead soft condition and is not normally thermally reversible.
Hardness 1/4 through 5/8": Rockwell B95 - C32; 3/4 through 1": Rockwell B80 - C32
Proof Load 1/4 through 5/8": 100,000 psi.; Fine thread: 85,000 psi.
Nuts
114
H
G
F
Finished Hex DimensionalInformation
GRADE-5 & GRADE-8 FINISHED HEX NUTSANSI/ASME
B18.2.2
Nominal or Basic MajorDiameter of Thread
F G H
Width Across Flats Width Across Corners Thickness of Hex Nuts
Basic Max Min Max Min Basic Max Min
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.245
Nuts
115
x x
x x
Finished HexGrade-5 &Grade-8
GRADE-5
GRADE-8
DescriptionA finished hex nut made from steel with a maximum carbon content of 0.55%, a minimum manganese content of 0.30% and a
maximum sulfur content of 0.05%. The purchaser and producer of the nuts may agree to allow a sulfur content of 0.33%maximum provided that the manganese content is at least 1.35%.
Applications/Advantages
For use with bolts with a minimum tensile strength equal to or less than 150,000 psi..
Material AISI 1021 - 1045 or equivalent steel
Core Hardness1/4 through 5/8 in.: Rockwell C24 - C323/4 through 1 in.: Rockwell C26 - C34
Over 1 in. through 1-1/2 in.: Rockwell C26 - C36
Proof Load 1/4 through 1-1/2 in.: 150,000 psi.
Plating See Appendix-A for plating information.
* *
* *
*Product standards require all grade-marked nuts 1/4” diameter and larger to have a raised or depressed insignia identifying its manufacturer. “X” represents onelocation such an insignia may appear.
Description A finished hex nut made from steel with a maximum carbon content of 0.55%, a minimum manganese content of 0.30%, and amaximum sulfur content of 0.15%.
Applications/Advantages For use with bolts with a minimum tensile strength equal to or less than the specified proof stress of the nut.
Material AISI 1008 - 1026 or equivalent steel
Core Hardness Rockwell C32 maximum
Proof Load 1/4 through 1 in. Coarse thread: 120,000 psi.; Fine thread: 109,000 psi.1-1/8 through 1-1/2 in. Coarse thread: 105,000 psi.; Fine thread: 94,000 psi.
Plating See Appendix-A for plating information.
x
*
*
These styles of grade markings wereused on products manufactured prior
to July 1999.
These styles of grade markings wereused on products manufactured prior
to July 1999.
Approved style of grade markingas issued by SAE J995, revised
July 1999.
Approved style of grade markingas issued by SAE J995, revised
July 1999.
Nuts
116
H
G
F
Heavy Hex DimensionalInformation
HEAVY HEX NUTSANSI/ASME
B18.2.2
Nominal Size or BasicMajor Diameter of Thread
F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
1/4 0.2500 1/2 0.500 0.488 0.577 0.556 15/64 0.250 0.218
5/16 0.3125 9/16 0.562 0.546 0.650 0.622 19/64 0.314 0.280
3/8 0.3750 11/16 0.688 0.669 0.794 0.763 23/64 0.377 0.341
7/16 0.4375 3/4 0.750 0.728 0.866 0.830 27/64 0.441 0.403
1/2 0.5000 7/8 0.875 0.850 1.010 0.969 31/64 0.504 0.464
9/16 0.5625 15/16 0.938 0.909 1.083 1.037 35/64 0.568 0.526
5/8 0.6250 1-1/16 1.062 1.031 1.227 1.175 39/64 0.631 0.587
3/4 0.7500 1-1/4 1.250 1.212 1.443 1.382 47/64 0.758 0.710
7/8 0.8750 1-7/16 1.438 1.394 1.660 1.589 55/64 0.885 0.833
1 1.0000 1-5/8 1.625 1.575 1.876 1.796 63/64 1.012 0.956
1-1/8 1.1250 1-13/16 1.812 1.756 2.093 2.002 1-7/64 1.139 1.079
1-1/4 1.2500 2 2.000 1.938 2.309 2.209 1-7/32 1.251 1.187
1-3/8 1.3750 2-3/16 2.188 2.119 2.526 2.416 1-11/32 1.378 1.310
1-1/2 1.5000 2-3/8 2.375 2.300 2.742 2.622 1-15/32 1.505 1.433
1-5/8 1.6250 2-9/16 2.562 2.481 2.959 2.828 1-19/32 1.632 1.556
1-3/4 1.7500 2-3/4 2.750 2.662 3.175 3.035 1-23/32 1.759 1.679
2 2.0000 3-1/8 3.125 3.025 3.608 3.449 1-31/32 2.013 1.925
2-1/4 2.2500 3-1/2 3.500 3.388 4.041 3.862 2-13/64 2.251 2.155
2-1/2 2.5000 3-7/8 3.875 3.750 4.474 4.275 2-29/64 2.505 2.401
2-3/4 2.7500 4-1/4 4.250 4.112 4.907 4.688 2-45/64 2.759 2.647
3 3.0000 4-5/8 4.625 4.475 5.340 5.102 2-61/64 3.013 2.893
3-1/4 3.2500 5 5.000 4.838 5.774 5.515 3-3/16 3.252 3.124
3-1/2 3.5000 5-3/8 5.375 5.200 6.207 5.928 3-7/16 3.506 3.370
3-3/4 3.7500 5-3/4 5.750 5.562 6.640 6.341 3-11/16 3.760 3.616
4 4.0000 6-1/8 6.125 5.925 7.073 6.755 3-15/16 4.014 3.862
Nuts
117
Heavy HexSteel &Stainless
STEEL
18-8 STAINLESS STEEL
x DH
x
DH3
x
Grade-A Grade-C Grade-2H Grade-DH Drade-DH3
DescriptionA six-sided internally threaded fastener which is both thicker and wider across the flats than a same-sized finished hex nut, made of 18-8 stainless steel. Nuts in sizes 7/16 & smaller shall be double chamfered. Larger sizes are either double chamfered or chamfered on
top with a washer faced bearing surface.
Applications/Advantages
This is the strongest of all 18-8 stainless hex nuts because of its greater length of thread engagement and greater resistance to dilation(widening or stretching).
Material Nuts shall be made from one of the following austenitic stainless alloys: 303, 303Se, 304, XM7, all of which are characterized as havinga chromium content of 18% and a nickel content of 8%.
Heat TreatmentThe austenitic alloys develop their strength through work hardening during the fastener manufacturing process, as seen from the
hardness properties below. The only heat treatment normally available on austenitic stainless alloys is annealing, which is done atapproximately 19000F to a dead soft condition and is not normally thermally reversible.
Hardness 1/4 through 5/8": Rockwell B95 - C323/4 through 1": Rockwell B80 - C32
Proof Load 1/4 through 5/8": 100,000 psi3/4 through 1": 85,000 psi.
*
*Product standards require all grade-marked nuts 1/4” diameter and larger to have a raised or depressed grade-marking and insignia identifying its manufacturer.“X” represents one location a manufacturer’s insignia may appear.
**
Description A six-sided internally threaded fastener which is both thicker and wider across the flats than a same-sized finished hex nut. Nuts in sizes 7/16& smaller shall be double chamfered. Larger sizes are either double chamfered or chamfered on top with a washer faced bearing surface.
Applications/Advantages
This is the strongest of all comparably-graded nuts because of its greater length of thread engagement and greater resistance to dilation(widening or stretching). Grade-A nuts are used with low-carbon heavy hex bolts. Grade-C nuts are recommended for use with A-325
structural bolts. Grade-2H nuts are recommended for use with bolts in high-pressure and high-temperature service. Grade-DH nuts arerecommended for use with A-490, Type-1 structural bolts and Grade-DH3 nuts for use with A-490, Type-3 structural bolts.
Material
Nuts shall be made from a steel which conforms to the following chemical composition requirements (heat analysis)--Grades-A & C-- Carbon: 0.55% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.023% maximum.
Grade-2H-- Carbon: 0.40% minimum; Manganese: 1.00% maximum; Phosphorus: 0.04% maximum; Sulfur: 0.05% maximum;Silicon: 0.40% maximum.
Grade-DH-- Carbon: 0.20-0.55%; Manganese: 0.60% minimum; Phosphorus: 0.04% maximum; Sulfur: 0.05% maximum.Grade-DH3-- Carbon: 0.20-0.53%; Manganese: 0.40% minimum; Phosphorus: 0.046% maximum; Sulfur: 0.050% maximum;
Copper: 0.20% minimum; Chromium: 0.45% minimum; (Either Nickel: 0.20% minimum or Molybdenum: 0.15% minimum, may be used).
HeatTreatment
Grade-2H: These nuts shall be heat treated by quenching in a liquid medium from a temperature above the transformation temperature andtempering at a temperature of at least 850°F.
Grades-C, DH & DH3: These nuts shall be heat treated by quenching in a liquid medium from a temperature above the transformationtemperature and tempering at a temperature of at least 800°F.
CoreHardness
Grade-A: Rockwell B68 - C32Grade-C: Rockwell B78 - C38
Grades-2H, DH & DH3: Rockwell C24 - C38
Proof LoadGrade-A: Coarse- 100,000 psi.; Fine- 90,000 psi.
Grade-C: 144,000 psi.Grade-2H: 150,000 psi.
Grades-DH & DH3: 175,000 psi.
Plating See Appendix-A for plating information.
*
Nuts
118
H1
G
F
Description A six-sided internally threaded fastener which is only 2/3 the thickness of a full form nut.
Applications/Advantages
Jam nuts are tightened against the work surface and a finished or heavy hex nut is tightened against the jam nut to keep it fromloosening.
Material
Steel: Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements-- Carbon:0.47% maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum.
Stainless: Nuts shall be made from one of the following austenitic alloys: 303, 303Se, 304, XM7, all of which have a chromiumcontent of 18% and a nickel content of 8%.
Heat TreatmentStainless: The austenitic alloys develop their strength through work hardening during the fastener manufacturing process, as seenfrom the hardness properties below. The only heat treatment normally available on austenitic stainless alloys is annealing, which is
done at approximately 1900°F to a dead soft condition and is not normally thermally reversible.
Core Hardness Steel: Rockwell B68 - C32Stainless: Rockwell B95 - C32
Proof Load Steel: Coarse thread-- 54,000 psi.; Fine thread-- 48,000 psi.Stainless: 1/4 through 1/2"-- 60,000 psi.
Plating See Appendix-A for information about the plating of steel jam nuts.
Hex Jam Steel &Stainless
HEX JAM NUTSANSI/ASME
B18.2.2-1987
Nominal or Basic MajorDiameter of Thread
F G H1
Width Across Flats Width Across Corners Thickness of Hex Jam Nuts
Basic Max Min Max Min Basic Max Min
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 5/32 0.163 0.150
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 3/16 0.195 0.180
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 7/32 0.227 0.210
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 1/4 0.260 0.240
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 5/16 0.323 0.302
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 5/16 0.324 0.301
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 3/8 0.387 0.363
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 27/64 0.446 0.398
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 31/64 0.510 0.458
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 35/64 0.575 0.519
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 39/64 0.639 0.579
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 23/32 0.751 0.687
1-3/8 1.3750 2-1/16 2.062 1.994 2.382 2.273 25/32 0.815 0.747
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 27/32 0.880 0.808
1-3/4 1.7500 2-5/8 2.625 2.538 3.031 2.893 31/32 1.009 0.929
2 2.0000 3 3.000 2.900 3.464 3.306 1-3/32 1.138 1.050
2-1/4 2.2500 3-1/2 3.500 3.388 4.041 3.862 1-13/64 1.251 1.155
2-1/2 2.5000 3-7/8 3.875 3.750 4.474 4.275 1-29/64 1.505 1.401
Nuts
119
K-LockSteel &Stainless
I H F
G
Description A hex nut pre-assembled with a free spinning external tooth lock washer. The locking action is achieved when the nut is tightened againsta bearing surface as the teeth of the lock washer dig into it.
Applications/Advantages
This is the most popular type of locknut because of its versatility, cost and ease of installation. Doesn't gall screw threads.
Material Steel: Nuts-- AISI 1008-1020 or equivalent steel; Washers-- 1050-03 or equivalent steel.Stainless: Nuts-- One of the following austenitic alloys: 303, 303Se, 304, XM7; Washers-- SAE 300-305 stainless.
Hardness Steel: Washers-- Rockwell C38 minimum, C44 maximumStainless: Washers-- Rockwell C20 - 45
Plating See Appendix-A for information about the plating of steel nuts.
*Shakeproof is the original writer of K-lock nut specifications.
"K" L OCK NUTS Shakeproof* #501-01
Nominal Size or BasicThread Diameter
F G H I
Width Across Flats Width Across Corners Thickness Washer Diameter
Basic Max Min Max Min Max Min Max Min
4 0.1120 1/4 0.250 0.241 0.289 0.275 0.098 0.087 0.286 0.277
5 0.1250 1/4 0.250 0.241 0.289 .0275 0.098 0.087 0.287 0.277
6 0.1380 5/16 0.312 0.302 0.361 0.344 0.114 0.102 0.348 0.338
6 SP 0.1380 1/4 0.250 0.241 0.289 .0275 0.098 0.087 0.287 0.277
8 0.1640 11/32 0.344 0.332 0.397 0.378 0.130 0.117 0.381 0.370
10 0.1900 3/8 0.375 0.362 0.433 0.413 0.130 0.117 0.406 0.395
12 0.2160 7/16 0.438 0.423 0.505 0.482 0.161 0.148 0.506 0.494
1/4 0.2500 7/16 0.438 0.423 0.505 0.482 0.193 0.178 0.506 0.494
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 0.273 0.258 0.592 0.579
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 0.385 0.365 0.665 0.651
1/2 0.5000 3/4 0.750 0.736 0.866 .840 0.437 0.425 0.898 0.878
Nuts
120
Automation Hex Lock Grade-C& Grade-GT
H
KA
BF
x
GRADE GT FLANGE STYLE LOCK NUTS RB&W Corp.
Nominal Sizein Inches
F B H A K
Width Across FlatsFlange
DiameterOverall Thickness Hex Height
FlangeThickness
Nom Max Min Max Max Min Min Min
1/4 7/16 0.4385 0.428 0.560 0.300 0.265 0.140 0.040
5/16 1/2 0.5020 0.489 0.680 0.365 0.320 0.170 0.050
3/8 9/16 0.5645 0.551 0.810 0.425 0.404 0.200 0.060
7/16 11/16 0.6895 0.675 0.930 0.495 0.457 0.230 0.070
1/2 3/4 0.7520 0.736 1.070 0.555 0.528 0.260 0.080
5/8 15/16 0.9395 0.922 1.330 0.690 0.646 0.320 0.100
3/4 1-1/8 1.1270 1.088 1.585 0.825 0.742 0.380 0.110
*
*Product standards require all grade-marked nuts 1/4” diameter and larger to have a raised or depressed insignia identifying its manufacturer. “X” represents onelocation such an insignia may appear.
DescriptionGrade-C Automation Lock Nut: An all-metal, one-piece hex nut which derives its prevailing torque characteristics from controlled
distortion of its top threads from their normal helical form to a more elliptical shape.Grade-GT Flange Style Automation Lock Nut: Similar to Grade-C but with a flange on the bottom side of the nut.
Applications/Advantages
Grade-C: These nuts are reusable and can withstand temperatures of up to 4500F. Can withstand severe vibration and shock loads.Frequently used in farm machinery, plus the automotive and related metalworking industries.
Grade-GT: Has a lower, more uniform bearing stress to clamp force ratio. This style reduces inventory (by eliminating a washer) and in-place cost. It is designed to be used specifically but not exclusively with grade-8 frame bolts.
Material C1022 - 1045 steel.
Heat Treatment Nuts are heat treated to the austenitizing temperature of the material of which the nut is made, quenched in a proper medium to obtain apredominately martensitic microstructure, and tempered to the specified hardness.
Hardness1/4 through 5/8 in.: Rockwell C24 - C323/4 through 1 in.: Rockwell C26 - C34
1-1/8 through 2 in.: Rockwell C26 - C36
Proof Load 150,000 psi.
Plating See Appendix-A for plating information.
Nuts
121
Grade-C
W
HT
WB
x
T
GRADE C AUTOMATION STYLE LOCK NUTS RB&W Corp.
Nominal Size inInches
T W B
Width Across Flats Overall Thickness Hex Height
Nom Max Min Max Min Min
1/4 7/16 0.4385 0.428 0.226 0.212 0.145
5/16 1/2 0.5020 0.489 0.273 0.258 0.166
3/8 9/16 0.5645 0.551 0.337 0.320 0.198
7/16 11/16 0.6895 0.675 0.385 0.365 0.223
1/2 3/4 0.7520 0.736 0.448 0.427 0.262
9/16 7/8 0.8770 0.861 0.496 0.473 0.286
5/8 15/16 0.9395 0.922 0.559 0.535 0.329
3/4 1-1/8 1.1270 1.088 0.665 0.617 0.382
7/8 1-5/16 1.3145 1.2690 0.776 0.724 0.450
1 1-1/2 1.5020 1.4500 0.887 0.831 0.513
GRADE C HEX COLLAR LOCK NUTS RB&W Corp.
Nominal Size inInches
T W H
Width Across Flats Overall Thickness Hex Height
Max Min Max Min Max Min
1-1/8 1.688 1.631 0.999 0.939 0.657 0.636
1-1/4 1.875 1.812 1.094 1.030 0.719 0.698
1-3/8 2.062 1.994 1.206 1.138 0.793 0.771
1-1/2 2.250 2.175 1.317 1.245 0.865 0.843
1-3/4 2.625 2.538 1.540 1.460 1.012 0.989
2 3.000 2.900 1.763 1.675 1.158 1.134
Automation Hex Lock
*
*Product standards require all grade-marked nuts 1/4” diameter and larger to have a raised or depressed insignia identifying its manufacturer. “X” represents onelocation such an insignia may appear.
Nuts
122
Serrated Hex Flange Free-spinninglock nuts
G
BF
H
K
J
Slight RoundingPermissible
*IFI specifications apply to #6 through 3/4” diameters.
SERRATED HEX FLANGE LOCK NUTS IFI 1986*
Nominal Size orBasic Major
Diameter of Thread
F G B H K J
Width Across Flats Width AcrossCorners
Flange Diameter Nut Thickness WrenchingLength
FlangeThickness
Max Min Max Min Max Min Max Min Min Min
6 0.1380 0.312 0.302 0.361 0.342 0.422 0.406 0.171 0.156 0.10 0.02
8 0.1640 0.344 0.334 0.397 0.381 0.469 0.452 0.203 0.187 0.13 0.02
10 0.1900 0.375 0.365 0.433 0.416 0.500 0.480 0.219 0.203 0.13 0.03
1/4 0.2500 0.438 0.428 0.505 0.488 0.594 0.574 0.236 0.222 0.14 0.04
5/16 0.3125 0.500 0.489 0.577 0.557 0.680 0.660 0.283 0.268 0.17 0.04
3/8 0.3750 0.562 0.551 0.650 0.628 0.750 0.728 0.347 0.330 0.23 0.04
7/16 0.4375 0.688 0.675 0.794 0.768 0.937 0.910 0.395 0.375 0.26 0.04
1/2 0.5000 0.750 0.736 0.866 0.840 1.031 1.000 0.458 0.437 0.31 0.05
9/16 0.5625 0.875 0.861 1.010 0.982 1.188 1.155 0.506 0.483 0.35 0.05
5/8 0.6250 0.938 0.922 1.083 1.051 1.281 1.248 0.569 0.545 0.40 0.05
3/4 0.7500 1.125 1.088 1.299 1.240 1.500 1.460 0.675 0.627 0.46 0.06
7/8 0.8750 1.179 1.166 1.361 1.295 1.682 - 0.786 0.742 - 0.11
Description Hex nut with an enlarged circular base flaring out from the bottom of the nut. The bearing surface of the flange has serrations whichdisplace material on the mating surface when the nut is wrenched into place, forming a connection which resists loosening.
Applications/Advantages
Requires a greater amount of torque to loosen than to tighten the nut. Will span oversized or poorly aligned holes. Flange provides amore uniform bearing-stress to clamp-force ratio than other low carbon lock nuts. Does not gall screw threads.
Material
Steel Stainless
Nuts shall be made from a carbon steel which conforms to thefollowing chemical composition requirements--Carbon: 0.47% max.;
Phosphorus: 0.12% max.; Sulfur: 0.23% max..18-8 stainless steel
Plating Steel nylon insert stop nuts are usually supplied with a zinc plating. Stainless nylon insert stop nuts are usually provided without anyadditional plating.
Nuts
123
Grade-F Large Flange
BF
H
x
F
*
Description A nut with a flange that is 6% to 25% wider than a regular flange nut of the same diameter.
Applications/Advantages Spans larger holes than a standard flange nut, as well as a more uniform bearing-stress to clamp-force ratio.
Material AISI 1008 - 1035 carbon steel
Plating See Appendix-A for plating information.
**MacLean-Fogg is the original writer of large flange grade F nut specifications. Kanebridge’s flange nuts are not manufactured by or connected with the producersof MacLean-Fogg nuts.
LARGE FLANGE NUT, GRADE F MacLean-Fogg**
Nominal Size or Basic MajorDia. of Thread
F B H
Width Across Flats Flange Diameter Nut Thickness
Max Min Max Min Max Min
1/4 0.2500 0.437 0.428 0.728 0.700 0.312 0.281
5/16 0.3125 0.500 0.489 0.820 0.790 0.375 0.343
3/8 0.3750 0.562 0.551 0.915 0.885 0.406 0.390
7/16 0.4375 0.687 0.675 1.131 1.100 0.468 0.437
1/2 0.5000 0.750 0.736 1.205 1.171 0.515 .0485
*Product standards require all large flange nuts 1/4” diameter and larger to have a raised or depressed grade-marking and insignia identifying its manufacturer. “X”represents one location a manufacturer’s insignia may appear.
Nuts
124
G
FA
H
QT U
ONE PIECE HEX CAP NUTS, LOW CROWN SAE J483
Nominal Size or BasicMajor Diameter of
Thread
F G A H Q T U
Width Across Flats Width Across Corners BodyDiameter
OverallHeight
HexagonHeight
Drill DepthFull
Thread
Max Min Max Min Max Min
6 0.1380 0.3125 0.302 0.361 0.344 0.30 0.34 0.16 0.25 0.16
8 0.1640 0.3125 0.302 0.361 0.344 0.30 0.34 0.16 0.25 0.16
10 0.1900 0.3750 0.362 0.433 0.413 0.36 0.41 0.19 0.28 0.19
1/4 0.2500 0.4375 0.428 0.505 0.488 0.41 0.47 0.22 0.34 0.25
5/16 0.3125 0.5000 0.489 0.577 0.557 0.47 0.53 0.25 0.41 0.31
3/8 0.3750 0.5625 0.551 0.650 0.628 0.53 0.62 0.28 0.45 0.38
1/2 0.5000 0.7500 0.736 0.866 0.840 0.72 0.81 0.38 0.59 0.50
5/8 0.6250 0.9375 0.922 1.083 1.051 0.91 1.00 0.47 0.75 0.62
3/4 0.7500 1.0625 1.045 1.227 1.191 1.03 1.16 0.53 0.88 0.75
Cap (Acorn) Nuts Low Crown—Steel& Stainless
DescriptionSteel: The low-crown cap nut is usually manufactured in two pieces, a hex nut and an acorn-shaped top, zinc die cast to form the
finished part.Stainless: Similar in design to the steel nut but made from an austenitic stainless alloy. Nuts may be one or two-piece style.
Applications/Advantages
Cap nuts serve two main purposes: (1) as decorative pieces, and (2) as covers for projecting threads.
MaterialSteel: Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--
Carbon: 0.47% max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max..Stainless: 304L or equivalent stainless.
Plating See Appendix-A for information about the plating of steel cap nuts.
TWO PIECE HEX CAP NUTS
Nominal Size or Basic MajorDiameter of Thread
F G H
Width Across Flats Width Across Corners Overall Height
Max Min Max Min Max Min
4 0.1120 0.248 0.225 - - 0.200 0.177
5 0.1250 0.3125 0.302 0.361 0.344 0.260 0.240
6 0.1380 0.3125 0.302 0.361 0.344 0.260 0.240
8 0.1640 0.3125 0.302 0.361 0.344 0.260 0.240
10 0.1900 0.3750 0.362 0.433 0.413 0.291 0.271
1/4 0.2500 0.4375 0.423 0.505 0.482 0.338 0.318
5/16 0.3125 0.562 0.545 0.650 0.621 0.385 0.365
3/8 0.3750 0.625 0.607 0.722 0.692 0.432 0.412
1/2 0.5000 0.750 0.736 0.866 0.840 0.572 0.552
5/8 0.6250 0.938 0.909 1.083 1.037 0.807 0.787
3/4 0.7500 1.12 1.08 - - 1.12 1.08
Nuts
125
Open End--Steel Cap Nuts
OPEN-ENDED HEX CAP NUTS
Nominal Size orBasic Major Diameter of Thread
F H
Width Across Flats Overall Height
Ref Ref
1/4-20 0.2500 7/16 21/64
5/16-18 0.3125 9/16 3/8
Description A low-crown cap nut with the top portion of its dome removed, allowing the male-threaded part to protrude through the opening.
Applications/Advantages
The open-ended cap nut still offers much of the attractiveness and protection of a regular closed-end cap nut but can be used withbolts or screws of any length.
Material Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--Carbon: 0.47% max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max.
Plating Steel open-ended cap nuts are usually supplied with a nickel plate finish. See Appendix-A for more information.
F
H
Nuts
126
Two-way Reversible Lock Nuts Steel
H
G
FH
DescriptionHex nut with two or three, round or rectangular indentations, compressed onto the flat sides of the nut equidistant from each other.The compressions create slightly distorted center threads resulting in a controlled locking action when the threads of the mating part
become engaged.
Applications/Advantages
This is the least expensive prevailing torque type of nut, designed for use with machine screws and low-carbon bolts. It allows forautomatic assembly because the top and bottom of the nut are identical. It creates a locking action even without being fully threaded
onto its mating screw.
Material Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--Carbon: 0.47%max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max..
Hardness Rockwell C28 maximum
Proof Load 90,000 psi.
Plating See Appendix-A for plating information.
*Aztech is the writer of these two-way reversible lock nut specifications.
TWO WAY REVERSIBLE LOCK NUTS Aztech*
Nominal or Basic MajorDiameter of Thread
F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
8 0.1640 11/32 0.344 0.332 0.397 0.378 3/16 0.193 0.178
10 0.1900 3/8 0.375 0.362 0.433 0.413 13/64 0.203 0.187
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831
Nuts
127
Light Hex,Grade 8 Nylon Insert (Elastic) Stop Nuts
G
F
IH
NYLON INSERT STOP NUTS, LIGHT HEX, GRADE 8 Esna®
Nominal Size or BasicThread Diameter
F H I G
Width Across Flats Thickness Side HeightWidth Across
Corners
Max Min Max Min Ref Ref
1/4 0.2500 .439 .430 .328 .298 .225 .482
5/16 0.3125 .502 .492 .359 .329 .250 .552
3/8 0.3750 .564 .553 .468 .438 .335 .622
7/16 0.4375 .627 .616 .468 .438 .324 .694
1/2 0.5000 .752 .741 .609 .579 .464 .837
9/16 0.5625 .877 .865 .656 .626 .469 .978
5/8 0.6250 .940 .928 .765 .735 .593 1.051
3/4 0.7500 1.064 1.052 .890 .860 .742 1.191
7/8 0.8750 1.252 1.239 .999 .969 .790 1.403
1 1.0000 1.440 1.427 1.078 1.016 .825 1.615
1-1/8 1.1250 1.627 1.614 1.203 1.141 .930 1.826
1-1/4 1.2500 1.814 1.801 1.422 1.360 1.125 2.038
1-3/8 1.3750 2.008 1.973 1.609 1.547 1.282 2.232
1-1/2 1.5000 2.197 2.159 1.640 1.578 1.313 2.416
®Esna is a registered trademark of the MacLean-Fogg Company. Kanebridge’s stop nuts are not manufactured by or connected with the producers of Esna® nuts.
DescriptionHeat treated hex nut with a nylon-filled collar at its back end. The nut shall be grade-marked in one of two ways: (1) with double
notched corners or (2) with six symmetrically spaced identical symbols on the chamfered surface on top of the nut. When the cap-screw or bolt reaches the collar, the threads and nylon form a tight, frictional fit, restricting movement of the cap-screw or bolt when it
is subjected to vibration. The nylon insert comes in various colors.
Applications/Advantages
Designed to be used in structural applications with Grade-8 cap-screws or bolts which have a minimum tensile strength of 150,000 psi.or greater. Some such applications include engines, turbines, hydraulic cylinders, railroads and aerospace. Nylon insert nuts are not
designed to be used at temperatures over 250 0 F.
Material Heat treated AISI C1137 or equivalent steel.
Heat Treatment Nuts are heated to the austenitizing temperature of the steel, quenched and tempered to achieve the hardness specifications listed inthis table.
Hardness Rockwell C 26 - 34
Proof Load 150,000 psi.
Plating Grade-8 nylon insert stop nuts are usually supplied zinc yellow-plated. See Appendix-A for more information.
Nuts
128
Nylon Insert (Elastic) Stop Nuts StandardPattern
H
I
G
F
Description Hex nut with a nylon-filled collar at its back end. When a screw reaches the collar, the threads and nylon form a tight, frictional fit,restricting movement of the screw when it is subjected to vibration. The nylon insert comes in various colors.
Applications/Advantages
Designed to be used with like-material machine screws and bolts. It is able to be reused more times than a two-way reversible nut.Steel nylon insert stop nuts are less expensive than grade-C automation lock nuts. However, nylon will begin to deteriorate at
temperatures from 1500-3500 F.
MaterialSteel Stainless
#2 through 5/8" -- AISI 1008 - 1010 or equivalent steel;3/4 through 1-1/2"-- AISI C1117 or equivalent steel.
18-8: AISI 303 or equivalent stainless steel.316: Type 316 stainless steel.
Hardness Rockwell C28 maximum 1/4 through 5/8"-- Rockwell B95 - C32;3/4 through 1-1/2"-- Rockwell B80 - C32
Proof Load 90,000 psi. minimum1/4 through 5/8"-- Rockwell B95 - C32;
3/4 through 1-1/2"-- Rockwell B80 - C32
Plating Steel nylon insert stop nuts are usually supplied with a zincplating.
Stainless nylon insert stop nuts are usually provided without anyadditional plating.
®Esna is a registered trademark of the MacLean-Fogg Company. Kanebridge’s stop nuts are not manufactured by or connected with the producers of Esna® nuts.
NYLON INSERT STOP NUTS, STANDARD PATTERN Esna®
Nominal Size orBasic Thread
Diameter
Esna® Part Numbers F H I G
Steel, Zinc-plate Stainless Width Across Flats Thickness SideHeight
WidthAcrossCorners
Coarse Fine Coarse Fine Basic Max Min Max Min Ref Ref
2 0.0860 21NM-26 -- 79NM-26 -- 1/4 0.251 0.243 0.153 0.133 0.081 0.268
3 0.0990 21NM-38 -- 79NM-38 -- 1/4 0.251 0.243 0.153 0.133 0.081 0.268
4 0.1120 21NM-40 -- 79NM-40 -- 1/4 0.251 0.243 0.153 0.133 0.081 0.268
5 0.1250 21NM-50 -- -- -- 1/4 0.251 0.243 0.153 0.133 0.081 0.268
6 0.1380 21NM-62 -- 79NM-62 -- 5/16 0.313 0.305 0.188 0.168 0.103 0.339
8 0.1640 21NM-82 -- 79NM-82 -- 11/32 0.345 0.336 0.239 0.219 0.140 0.374
10 0.1900 21NM-04 21NM-02 79NM-04 79NM-02 3/8 0.376 0.367 0.249 0.229 0.140 0.410
12 0.2160 21NM-124 21NM-128 79NM-124 -- 7/16 0.439 0.430 0.328 0.298 0.225 0.482
1/4 0.2500 21NE-040 21NE-048 79NE-040 -- 7/16 0.439 0.430 0.328 0.298 0.225 0.482
5/16 0.3125 21NE-058 21NE-054 79NE-058 -- 1/2 0.502 0.492 0.359 0.329 0.250 0.552
3/8 0.3750 21NE-066 21NE-064 79NE-066 -- 9/16 0.564 0.553 0.468 0.438 0.335 0.622
7/16 0.4375 21NE-074 21NE-070 -- -- 5/8 0.627 0.616 0.468 0.438 0.324 0.698
1/2 0.5000 21NE-083 21NE-080 79NE-083 -- 3/4 0.752 0.741 0.609 0.579 0.464 0.837
9/16 0.5625 21NE-092 21NE-098 -- -- 7/8 0.877 0.865 0.656 0.626 0.469 0.978
5/8 0.6250 21NE-101 21NE-108 79NE-108 -- 15/16 0.940 0.928 0.765 0.735 0.593 1.051
3/4 0.7500 41NE-120 41NE-126 79NE-120 -- 1-1/8 1.064 1.052 0.890 0.860 0.742 1.191
7/8 0.8750 41NE-149 41NE-144 -- -- 1-5/16 1.252 1.239 0.999 0.969 0.790 1.403
1 1.0000 41NE-168 41NE-164 -- -- 1-1/2 1.440 1.427 1.078 1.016 0.825 1.615
1-1/8 1.1250 41NE-177 -- -- -- 1-11/16 1.627 1.614 1.203 1.141 0.930 1.826
1-1/4 1.2500 41NE-197 41NE-202 -- -- 1-7/8 1.815 1.801 1.422 1.360 1.125 2.038
1-1/2 1.5000 41NE-242 -- -- -- 2-1/4 2.197 2.159 1.640 1.578 1.313 2.444
Nuts
129
ThinPattern Nylon Insert (Elastic) Stop Nuts
H
I
G
F
Description Identical to a standard pattern nylon-insert stop nut but not as thick from top to bottom.
Applications/Advantages
Same general applications as the standard pattern, but thin pattern nuts are used when an insufficient number of projecting threads arepresent to use a standard nylon insert nut.
MaterialSteel Stainless
#4 through 5/8" diameters: AISI 1008 - 1010 or equivalent steel.3/4" diameter: AISI C1117 or equivalent steel.
18-8: Type 303 or equivalent stainless steel
Hardness Rockwell C 28 maximum 1/4 through 5/8"-- Rockwell B95 - C32;3/4 through 1-1/2"-- Rockwell B80 - C32
Proof Load Thin pattern nylon insert nuts are intended for use in limited clearance applications and not for load bearing purposes. If a preciseengineering standard is required, parts should be laboratory tested.
Plating Steel nylon insert stop nuts are usually supplied with a zinc plating. Stainless nylon insert stop nuts are usually provided without anyadditional plating.
®Esna is a registered trademark of the MacLean-Fogg Company. Kanebridge’s stop nuts are not manufactured by or connected with the producers of Esna® nuts.
Nylon Insert Stop Nuts, Thin Pattern Esna®
Nominal Size or BasicThread Diameter
Esna® Part Numbers F H I G
Steel, Zinc-plated Width Across Flats Thickness SideHeight
WidthAcrossCorners
Coarse Fine Basic Max Min Max Min Ref Ref
2 0.0860 21NTM-26 -- 1/4 0.251 0.243 0.124 0.094 0.075 0.268
4 0.1120 21NTM-40 -- 1/4 0.251 0.243 0.124 0.094 0.075 0.268
6 0.1380 21NTM-62 -- 5/16 0.313 0.305 0.140 0.110 0.090 0.339
8 0.1640 21NTM-82 -- 11/32 0.345 0.336 0.187 0.157 0.110 0.374
10 0.1900 21NTM-04 21NTM-02 3/8 0.376 0.367 0.187 0.157 0.110 0.410
12 0.2160 21NTM-124 -- 3/8 0.439 0.430 0.218 0.188 0.125 0.482
1/4 0.2500 21NTE-040 21NTE-048 7/16 0.439 0.430 0.218 0.188 0.125 0.482
5/16 0.3125 21NTE-058 21NTE-054 1/2 0.502 0.492 0.265 0.235 0.158 0.552
3/8 0.3750 21NTE-066 21NTE-064 9/16 0.564 0.553 0.281 0.251 0.150 0.622
7/16 0.4375 21NTE-074 21NTE-070 5/8 0.627 0.615 0.328 0.298 0.225 0.694
1/2 0.5000 21NTE-083 21NTE-080 3/4 0.752 0.741 0.328 0.298 0.190 0.837
9/16 0.5625 -- 21NTE-098 7/8 0.877 0.865 0.374 0.344 0.225 0.978
5/8 0.6250 21NTE-101 21NTE-108 15/16 0.940 0.928 0.406 0.376 0.265 1.051
3/4 0.7500 41NTE-120 41NTE-126 1-1/8 1.064 1.052 0.421 0.391 0.288 1.191
7/8 0.8750 41NTE-144 -- 1-1/4 1.252 1.239 0.484 0.454 0.340 1.403
1 1.0000 41NTE-164 -- 1-7/16 1.440 1.427 0.578 0.516 0.405 1.615
Nuts
130
Nylon Insert (Elastic) Stop Nuts Heavy Hex,Full Height
NYLON INSERT STOP NUTS, HEAVY HEX Esna®
Nominal Size or BasicThread Diameter
Esna ® Part Numbers F H I G
Steel, Zinc-plate Width Across Flats Thickness Side HeightWidth Across
Corners
Coarse Max Min Max Min Ref Ref
1/4 0.2500 21NU-040 0.503 0.489 0.390 0.360 0.290 0.556
5/16 0.3125 21NU-058 0.566 0.551 0.453 0.423 0.335 0.624
3/8 0.3750 21NU-066 0.691 0.675 0.562 0.532 0.392 0.763
7/16 0.4375 21NU-074 0.754 0.736 0.609 0.579 0.464 0.829
1/2 0.5000 21NU-083 0.879 0.861 0.718 0.688 0.544 0.969
5/8 0.6250 21NU-101 1.067 1.045 0.874 0.844 0.677 1.175
3/4 0.7500 41NU-120 1.255 1.231 1.015 0.985 0.790 1.382
7/8 0.8750 41NU-149 1.444 1.417 1.140 1.110 0.883 1.589
1 1.0000 41NU-168 1.632 1.602 1.312 1.250 1.000 1.796
DescriptionHeavy hex nut with a nylon-filled collar at its back end. When the cap-screw or bolt reaches the collar, the threads and nylon form atight, frictional fit, restricting movement of the cap-screw or bolt when it is subjected to vibration. The nylon insert comes in various
colors.
Applications/Advantages
Has greater surface area than NM-series nuts, making wrenching easier. Designed to be used with cap-screws and bolts which have aminimum tensile strength not greater than 90,000 psi.. Used in bridge and building construction, material handling, heavy equipmentand oil field machinery. Steel nylon insert stop nuts are less expensive than grade-C automation lock nuts. Nylon insert nuts are not
designed to be used at temperatures over 2500 F.
Material 1/4" through 5/8" -- AISI 1008 - 1010 or equivalent steel; 3/4 through 1"-- AISI C1117 or equivalent steel.
Hardness Rockwell C 28 maximum
Proof Load 90,000 psi.
Plating See Appendix-A for information about the plating of steel nylon-insert stop nuts.
G
F
I H
®Esna is a registered trademark of the MacLean-Fogg Company. Kanebridge’s stop nuts are not manufactured by or connected with the producers of Esna® nuts.
Nuts
131
Heavy Hex,Thin Height Nylon Insert (Elastic) Stop Nuts
NYLON INSERT STOP NUTS, HEAVY HEX, THIN PATTERN Esna®
Nominal Size or BasicThread Diameter
Esna ® Part Numbers F H I G
Steel, Zinc-plate Width Across Flats Thickness Side HeightWidth Across
Corners
Coarse Max Min Max Min Ref Ref
1/4 0.2500 21NTU-040 0.502 0.492 0.296 0.266 0.194 0.552
5/16 0.3125 21NTU-058 0.564 0.553 0.328 0.298 0.212 0.622
3/8 0.3750 21NTU-066 0.690 0.679 0.421 0.391 0.251 0.766
7/16 0.4375 21NTU-074 0.752 0.741 0.453 0.423 0.316 0.837
1/2 0.5000 21NTU-083 0.877 0.865 0.546 0.516 0.360 0.978
5/8 0.6250 21NTU-101 1.064 1.052 0.624 0.594 0.428 1.191
3/4 0.7500 41NTU-120 1.252 1.239 0.718 0.688 0.488 1.403
7/8 0.8750 41NTU-149 1.440 1.427 0.796 0.766 0.535 1.615
1 1.0000 41NTU-168 1.627 1.614 0.922 0.860 0.600 1.826
Description Identical to the NU-series heavy hex nylon insert stop nut but approximately 35% less thick from top to bottom.
Applications/Advantages
Thin pattern heavy hex nuts are used when an insufficient number of projecting threads are present to use a full heavy hex nylon insertstop nut.
Material 1/4" through 5/8" -- AISI 1008 - 1010 or equivalent steel; 3/4 through 1"-- AISI C1117 or equivalent steel.
Hardness Rockwell C 28 maximum
Plating See Appendix-A for information about the plating of steel nylon-insert stop nuts.
G
F
I H
®Esna is a registered trademark of the MacLean-Fogg Company. Kanebridge’s stop nuts are not manufactured by or connected with the producers of Esna® nuts.
Nuts
132
Flexloc® All-Metal Lock Nuts Light Hex,Full Height
G
FH
I
P B
FLEXLOC® LIGHT HEX FULL HEIGHT LOCK NUTS SPS
Nominal Size orBasic Thread
Diameter
F B G H P ITensile Strength
(psi.)
Width Across FlatsBearingSurface
Outside Diam.
WidthAcrossCorners
ThicknessBearing
Surface InsideDiam.
Side HeightCoarseThread
FineThread
Max Min Min Min Max Max Min Min Min
4 0.112 0.251 0.243 0.243 0.277 0.155 0.155 0.050 1,080 1,190
6 0.138 0.313 0.305 0.305 0.347 0.180 0.181 0.075 1,620 1,890
8 0.164 0.345 0.336 0.336 0.383 0.243 0.208 0.105 2,510 2,620
10 0.190 0.376 0.367 0.367 0.419 0.243 0.230 0.085 3,120 3,590
1/4 0.250 0.439 0.430 0.430 0.491 0.290 0.293 0.122 5,730 -
1/4 0.250 0.439 0.430 0.430 0.491 0.320 0.293 0.135 - 6,550
5/16 0.3125 0.502 0.492 0.492 0.561 0.353 0.356 0.150 9,600 9,950
3/8 0.375 0.564 0.553 0.553 0.631 0.462 0.418 0.210 13,800 14,500
7/16 0.4375 0.627 0.616 0.616 0.703 0.462 0.487 0.210 14,900 15,450
1/2 0.500 0.752 0.741 0.741 0.846 0.602 0.551 0.285 22,000 23,800
5/8 0.625 0.940 0.928 0.928 1.059 0.759 0.676 0.410 34,000 38,400
3/4 0.750 1.064 1.052 1.052 1.200 0.884 0.807 0.505 50,000 52,300
7/8 0.875 1.252 1.239 1.239 1.414 1.009 0.938 0.570 64,600 71,400
1 1.000 1.440 1.427 1.427 1.628 1.134 1.064 0.635 85,000 90,500
DescriptionAn all-metal, one-piece, hex-shaped lock nut with a round collar at its back end. The collar is segmented with opposed slots cut into it
above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which creates the prevailingtorque locking action. The light hex variety has a lesser across the flats dimension resulting in a lighter-weight part with the same
strength as a heavy hex variety.
Applications/Advantages
The full height light hex lock nut has the same locking capability as the heavy hex FlexLoc® nut, but with greater wrench clearance.FlexLoc nuts maintain their locking strength through 15 removals and re-applications, and at temperatures up to 550°F (450°F if zinc
or cadmium plated). They have superior resistance to vibration compared to all other lock nut varieties and do not gall threads.
Material Carbon steel.
Tensile Strength Minimum tensile strength requirements for carbon steel FlexLoc nuts are listed in above table.
Plating Unless specified as plain steel, FlexLoc nuts are used with a zinc, zinc yellow or cadmium finish.
®FLEXLOC is a registered trademark of SPS Technologies, Inc.. Kanebridge’s lock nuts are not manufactured by or connected with the producers of FLEXLOC® nuts.
Nuts
133
Light Hex,Thin Height Flexloc® All-Metal Lock Nuts
G
FH
I
P B
DescriptionAn all-metal, one-piece, hex-shaped lock nut with a round collar at its back end. The collar is segmented with opposed slots cut into it
above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which creates the prevailingtorque locking action. The light hex, thin height variety is approximately 30% shorter than the full height nut.
Applications/Advantages
The thin height light hex FlexLoc® nut is used when an insufficient number of projecting threads are present to use a full height nut,or when a lighter-weight nut is required. FlexLoc nuts maintain their locking strength through 15 removals and re-applications, and attemperatures up to 550°F (450°F if zinc or cadmium plated). They have superior resistance to vibration compared to all other lock
nut varieties and do not gall threads.
Material Carbon steel.
Tensile Strength Minimum tensile strength requirements for carbon steel FlexLoc nuts are listed in above table.
Plating Unless specified as plain steel, FlexLoc nuts are used with a zinc, zinc yellow or cadmium finish.
FLEXLOC® LIGHT HEX THIN HEIGHT LOCK NUTS SPS
Nominal Size orBasic Thread
Diameter
F B G H P ITensile Strength
(psi.)
Width Across FlatsBearingSurface
Outside Diam.
WidthAcrossCorners
ThicknessBearing
Surface InsideDiam.
Side HeightCoarseThread
FineThread
Max Min Min Min Max Max Min Min Min
6 0.138 0.313 0.305 0.305 0.347 0.141 0.181 0.036 1,270 1,420
8 0.164 0.345 0.336 0.336 0.383 0.188 0.208 0.070 1,960 2,060
10 0.190 0.376 0.367 0.367 0.419 0.188 0.230 0.065 2,340 2,800
1/4 0.250 0.439 0.430 0.430 0.491 0.219 0.293 0.075 4,450 5,090
5/16 0.3125 0.502 0.492 0.492 0.561 0.266 0.356 0.097 4,980 5,510
3/8 0.375 0.564 0.553 0.553 0.631 0.282 0.418 0.108 7,360 8,340
7/16 0.4375 0.627 0.616 0.616 0.703 0.328 0.487 0.138 10,100 11,300
7/16 0.4375 0.690 0.679 0.679 0.775 0.328 0.487 0.120 - 11,300
1/2 0.500 0.752 0.741 0.741 0.846 0.328 0.551 0.121 11,400 12,800
5/8 0.625 0.940 0.928 0.928 1.059 0.399 0.676 0.147 18,100 20,500
3/4 0.750 1.064 1.052 1.052 1.200 0.415 0.807 0.155 26,800 29,800
7/8 0.875 1.252 1.239 1.239 1.414 0.477 0.938 0.166 36,940 40,800
1 1.000 1.440 1.427 1.427 1.628 0.571 1.064 0.218 48,500 53,000
®FLEXLOC is a registered trademark of SPS Technologies, Inc.. Kanebridge’s lock nuts are not manufactured by or connected with the producers of FLEXLOC® nuts.
Nuts
134
Flexloc® All-Metal Lock Nuts Heavy Hex,Full Height
H
I
P B G
F
DescriptionAn all-metal, one-piece, hex-shaped lock nut with a round collar at its back end. The collar is segmented with opposed slots cut into it
above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which creates the prevailingtorque locking action.
Applications/Advantages
The full height heavy hex lock nut has the greatest locking capability and largest wrenching area of all FlexLoc® nuts. FlexLoc nutsmaintain their locking strength through 15 removals and re-applications, and at temperatures up to 550°F (450°F if zinc or cadmium
plated). They have superior resistance to vibration compared to all other lock nut varieties and do not gall threads.
Material Carbon steel.
Tensile Strength Minimum tensile strength requirements for carbon steel FlexLoc nuts are listed in above table.
Plating Unless specified as plain steel, FlexLoc nuts are used with a zinc, zinc yellow or cadmium finish.
FLEXLOC® HEAVY HEX FULL HEIGHT LOCKNUTS SPS
Nominal Size or BasicThread Diameter
F B G H P ITensile
Strength(psi.)Width Across Flats
BearingSurface
Outside Diam.
Width AcrossCorners
ThicknessBearing
Surface InsideDiam.
Side Height
Max Min Min Min Max Max Min Min
1/4 0.2500 0.502 0.492 0.492 0.561 0.290 0.293 0.094 5,730
5/16 0.3125 0.564 0.553 0.553 0.631 0.321 0.356 0.113 9,600
3/8 0.3750 0.627 0.616 0.616 0.703 0.384 0.418 0.144 13,800
7/16 0.4375 0.752 0.741 0.741 0.846 0.446 0.487 0.163 14,900
1/2 0.5000 0.814 0.803 0.803 0.917 0.509 0.551 0.196 22,000
5/8 0.6250 1.002 0.990 0.990 1.130 0.634 0.676 0.216 34,000
3/4 0.7500 1.127 1.115 1.115 1.271 0.759 0.807 0.245 50,000
7/8 0.8750 1.314 1.301 1.301 1.484 0.884 0.938 0.397 64,600
1 1.0000 1.502 1.489 1.489 1.699 1.009 1.064 0.462 85,000
®FLEXLOC is a registered trademark of SPS Technologies, Inc.. Kanebridge’s lock nuts are not manufactured by or connected with the producers of FLEXLOC® nuts.
Nuts
135
Heavy Hex,Thin Height Flexloc® All-Metal Lock Nuts
H
I
P B G
F
FLEXLOC® HEAVY HEX THIN HEIGHT LOCK NUTS SPS
Nominal Size or BasicThread Diameter
F B G H P ITensile
Strength(psi.)Width Across Flats
BearingSurface
Outside Diam.
Width AcrossCorners
ThicknessBearing
Surface InsideDiam.
Side Height
Max Min Min Min Max Max Min Min
1/4 0.2500 0.502 0.492 0.492 0.561 0.219 0.293 0.053 4,450
5/16 0.3125 0.564 0.553 0.553 0.631 0.266 0.356 0.087 4,980
3/8 0.3750 0.627 0.616 0.616 0.703 0.282 0.418 0.085 7,360
7/16 0.4375 0.752 0.741 0.741 0.846 0.328 0.487 0.101 10,100
1/2 0.5000 0.814 0.803 0.803 0.917 0.328 0.551 0.101 11,400
5/8 0.6250 1.002 0.990 0.990 1.130 0.399 0.676 0.116 18,100
3/4 0.7500 1.127 1.115 1.115 1.271 0.415 0.807 0.121 26,800
7/8 0.8750 1.314 1.301 1.301 1.484 0.477 0.938 0.163 36,940
1 1.0000 1.502 1.489 1.489 1.699 0.571 1.064 0.207 48,500
DescriptionAn all-metal, one-piece, hex-shaped lock nut with a round collar at its back end. The collar is segmented with opposed slots cut into it
above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which creates the prevailingtorque locking action. The heavy hex, thin height variety is approximately 30% shorter than the full height nut.
Applications/Advantages
The thin height heavy hex FlexLoc® nut is used when an insufficient number of projecting threads are present to use a full height nut,or when a lighter-weight nut is required. The nut has a greater wrenching area than the thin height light hex nuts. FlexLoc nuts
maintain their locking strength through 15 removals and re-applications, and at temperatures up to 550°F (450°F if zinc or cadmiumplated). They have superior resistance to vibration compared to all other lock nut varieties and do not gall threads.
Material Carbon steel.
Tensile Strength Minimum tensile strength requirements for carbon steel FlexLoc nuts are listed in above table.
Plating Unless specified as plain steel, FlexLoc nuts are used with a zinc, zinc yellow or cadmium finish.
®FLEXLOC is a registered trademark of SPS Technologies, Inc.. Kanebridge’s lock nuts are not manufactured by or connected with the producers of FLEXLOC® nuts.
Nuts
136
SteelSlotted Hex Nuts
G
F
Description Hex nut with opposed slots cut into the top of the nut through the centers of the flats. The slots are on the end opposite the bearingsurface.
Applications/Advantages
The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener.
Material Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--Carbon: 0.47% max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max..
Hardness Rockwell C32 maximum
Proof Load 72,000 psi.
Plating See Appendix-A for plating information.
.016 APPROX
H
S
HT
HEX SLOTTED NUTSANSI/ASME
B18.2.2
Nominal Size orBasic MajorDiameter of
Thread
F G H T S Runoutof
BearingSurface
FIMWidth Across Flats
Width AcrossCorners Thickness
UnslottedThickness Width of Slot
Basic Max Min Max Min Basic Max Min Max Min Max Min Max
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 7/32 0.226 0.212 0.14 0.12 0.10 0.07 0.015
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 17/64 0.273 0.258 0.18 0.16 0.12 0.09 0.016
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 21/64 0.337 0.320 0.21 0.19 0.15 0.12 0.018
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 3/8 0.385 0.365 0.23 0.21 0.15 0.12 0.018
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 7/16 0.448 0.427 0.29 0.27 0.18 0.15 0.019
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 31/64 0.496 0.473 0.31 0.29 0.18 0.15 0.020
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 35/64 0.559 0.535 0.34 0.32 0.24 0.18 0.021
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 41/64 0.665 0.617 0.40 0.38 0.24 0.18 0.023
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 3/4 0.776 0.724 0.52 0.49 0.24 0.18 0.025
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 55/64 0.887 0.831 0.59 0.56 0.30 0.24 0.027
1-1/8 1.1250 1-11/16 1.688 1.631 1.949 1.859 31/32 0.999 0.939 0.64 0.61 0.33 0.24 0.030
1-1/4 1.2500 1-7/8 1.875 1.812 2.165 2.066 1-1/16 1.094 1.030 0.70 0.67 0.40 0.31 0.033
1-1/2 1.5000 2-1/4 2.250 2.175 2.598 2.480 1-9/32 1.317 1.245 0.86 0.82 0.46 0.37 0.039
Nuts
137
SW
R.016 APPROX
HT
G
F
Hex Castle NutsSteel
Description Similar to a slotted nut with the following exception: the slots are cut into a cylindrical portion that is equal in length to the slot depthand slightly smaller in diameter than the hex width.
Applications/Advantages
The slots are for the insertion of a cotter pin to secure the nut when used with a drilled shank fastener. The slotted and castle stylesare both interchangeable with the slotted design now the preferred style.
Material Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--Carbon: 0.47%max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max..
Hardness Rockwell C32 maximum
Plating See Appendix-A for plating information.
HEX CASTLE NUTSANSI B18.2.2
1970
Nominal Sizeor Basic
MajorDiameter of
Thread
F G H T S R W Runoutof
BearingSurface
FIRWidth Across Flats
WidthAcrossCorners
ThicknessUnslotted
Thickness andHeight of Flat
Width ofSlot
Radiusof Filet
Diam. ofCylindrical
Part
Basic Max Min Max Min Basic Max Min Nom Max Min Max Min +.010 Min Max
1/4 0.2500 7/16 0.438 0.428 0.505 0.488 9/32 0.288 0.274 3/16 0.20 0.18 0.10 0.07 0.094 0.371 0.015
5/16 0.3125 1/2 0.500 0.489 0.577 0.557 21/64 0.336 0.320 15/64 0.24 0.22 0.12 0.09 0.094 0.425 0.016
3/8 0.3750 9/16 0.562 0.551 0.650 0.628 13/32 0.415 0.398 9/32 0.29 0.27 0.15 0.12 0.094 0.478 0.017
7/16 0.4375 11/16 0.688 0.675 0.794 0.768 29/64 0.463 0.444 19/64 0.31 0.29 0.15 0.12 0.094 0.582 0.018
1/2 0.5000 3/4 0.750 0.736 0.866 0.840 9/16 0.573 0.552 13/32 0.42 0.40 0.18 0.15 0.125 0.637 0.019
9/16 0.5625 7/8 0.875 0.861 1.010 0.982 39/64 0.621 0.598 27/64 0.43 0.41 0.18 0.15 0.156 0.744 0.020
5/8 0.6250 15/16 0.938 0.922 1.083 1.051 23/32 0.731 0.706 1/2 0.51 0.49 0.24 0.18 0.156 0.797 0.021
3/4 0.7500 1-1/8 1.125 1.088 1.299 1.240 13/16 0.827 0.798 9/16 0.57 0.55 0.24 0.18 0.188 0.941 0.023
7/8 0.8750 1-5/16 1.312 1.269 1.516 1.447 29/32 0.922 0.890 21/32 0.67 0.64 0.24 0.18 0.188 1.097 0.025
1 1.0000 1-1/2 1.500 1.450 1.732 1.653 1 1.018 0.982 23/32 0.73 0.70 0.30 0.24 0.188 1.254 0.027
1-1/4 1.250 1-7/8 1.875 1.812 2.165 2.066 1-1/4 1.272 1.228 7/8 0.89 0.86 0.40 0.31 0.250 1.570 0.033
Nuts
138
Hex Panel Nuts Steel
Description A double chamfered hex nut with significantly less surface area than a standard hex nut.
Applications/Advantages Popular uses are in switch mounts, volume controls and electrical fixtures.
Material Nuts shall be made from a low-carbon steel which conforms to the following chemical composition requirements--Carbon: 0.47%max.; Phosphorus: 0.12% max.; Sulfur: 0.23% max..
Plating See Appendix-A for plating information.
H W
*Panel nuts meet the same specifications as published by Jacobson Manufacturing Co..
HEX PANEL NUTS Jacobson Mfg.*
Part Number Thread Size Basic Pitch DiameterW H
Wrench Size Thickness
0202NP 1/8-27 .3726 9/16 1/8
0203NP 1/8-27 .3726 9/16 3/16
3707NP 3/8-32 .3547 7/16 3/32
3708NP 3/8-32 .3547 1/2 3/32
3709NP 3/8-32 .3547 9/16 3/32
4603NP 15/32-32 .4485 9/16 3/32
Nuts
139
Tee NutsStraightBarrel
G
F
HT A
G
F
H
AT
3-PRONG 4-PRONG
**Last digit of part number denotes number of prongs.
Description Internally threaded barrel-shaped fasteners integrally formed with a flat base, which has prong-type projections extending perpendicularfrom the base aside the barrel.
Applications/Advantages
3-Prong: Used for fastening metal to products made of wood, particle board or plastic. The 3-prong style is used in harder materials tominimize splitting of the mating surface.
4-Prong: Four prong tee-nuts can be used in hard or soft woods.
Material C1004-10 low-carbon steel.
Plating See Appendix-A for plating information.
T-NUTS, STRAIGHT BARREL
PartNumber**
ThreadSize
H G F A TDrillSize
PartNumber**
ThreadSize
H G F A TDrillSizeBarrel
HeightFlangeDiam.
BarrelDiam.
ProngHeight
MaterialThick-ness
BarrelHeight
FlangeDiam.
BarrelDiam.
ProngHeight
MaterialThick-ness
0604NT3 6-32 1/4 1/2 .188 1/8 .035 13/64 1407NT4 1/4-20 7/16 3/4 .305 1/4 .047 5/16
0804NT3 8-32 1/4 23/32 .208 7/32 .030 7/32 1408NT3 1/4-20 9/16 3/4 .3057/32-3/8
.047 5/16
1005NT3 10-24 5/16 3/4 .243 7/32 .040 1/4 1409NT4 1/4-20 9/16 3/4 .305 1/4 .047 5/16
1005NT4 10-24 5/16 3/4 .243 7/32 .040 1/4 3105NT3 5/16-18 5/16 7/8 .360 9/32 .047 3/8
1007NT3 10-24 7/16 3/4 .243 5/16 .040 1/4 3105NT4 5/16-18 5/16 7/8 .360 9/32 .047 3/8
1105NT3 10-32 5/16 3/4 .243 7/32 .040 1/4 3106NT3 5/16-18 3/8 7/8 .390 1/4 .063 25/64
1105NT4 10-32 5/16 3/4 .243 7/32 .040 1/4 3106NT4 5/16-18 3/8 7/8 .390 1/4 .063 25/64
1107NT3 10-32 7/16 3/4 .243 5/16 .040 1/4 3107NT3 5/16-18 7/16 7/8 .390 1/4 .063 13/32
1404NT3 1/4-20 1/4 3/4 .305 3/16 .047 5/16 3110NT3 5/16-18 5/8 7/8 .390 5/16 .063 25/64
1405NT3 1/4-20 5/16 3/4 .305 7/32 .047 5/16 3110NT4 5/16-18 5/8 7/8.375-.390
1/4-5/16
.060-.063
3/8,25/64
1405NT4 1/4-20 5/16 3/4 .305 7/32 .047 5/16 3705NT3 3/8-16 5/16 1 .420 9/32 .063 27/64
1406NT3 1/4-20 3/8 3/4 .305 1/4 .047 5/16 3707NT3 3/8-16 7/16 1 .440 11/32 .063 29/64
1407NT3 1/4-20 7/16 3/4 .305 5/16 .047 5/16 3707NT4 3/8-16 7/16 1 .440 11/32 .063 29/64
NOTE: There is no single standard for T-nut dimensions. These values are offered as a guide; deviations from these specifications may occur.
Nuts
140
Wing Nuts Cold Forged
E
C G
B
A D
WING NUTS - COLD FORGEDANSI/ASME
B18.17
Nominal Size orBasic MajorDiameter of
Thread
ThreadsPerInch
A B C D E G
Wing Spread Wing Height Wing Thickness Between Wings Boss Diameter Boss Height
Max Min Max Min Max Min Max Min Max Min Max Min
4 0.1120 40 & 48 0.72 0.59 0.41 0.28 0.11 0.07 0.21 0.17 0.33 0.29 0.14 0.10
6 0.1380 32 & 40 0.72 0.59 0.41 0.28 0.11 0.07 0.21 0.17 0.33 0.29 0.14 0.10
8 0.1640 32 & 36 0.91 0.78 0.47 0.34 0.14 0.10 0.27 0.22 0.43 0.39 0.18 0.14
10 0.1900 24 & 32 0.91 0.78 0.47 0.34 0.14 0.10 0.27 0.22 0.43 0.39 0.18 0.14
12 0.2160 24 & 28 1.10 0.97 0.57 0.43 0.18 0.14 0.33 0.26 0.50 0.45 0.22 0.17
1/4 0.2500 20 & 28 1.10 0.97 0.57 0.43 0.18 0.14 0.33 0.26 0.50 0.45 0.22 0.17
5/16 0.3125 18 & 24 1.25 1.12 0.66 0.53 0.21 0.17 0.39 0.32 0.58 0.51 0.25 0.20
3/8 0.3750 16 & 24 1.44 1.31 0.79 0.65 0.24 0.20 0.48 0.42 0.70 0.64 0.30 0.26
7/16 0.4375 14 & 20 1.94 1.81 1.00 0.87 0.33 0.26 0.65 0.54 0.93 0.86 0.39 0.35
1/2 0.5000 13 & 20 1.94 1.81 1.00 0.87 0.33 0.26 0.65 0.54 0.93 0.86 0.39 0.35
5/8 0.6250 11 & 18 2.76 2.62 1.44 1.31 0.40 0.34 0.90 0.80 1.19 1.13 0.55 0.51
3/4 0.7500 10 & 16 2.76 2.62 1.44 1.31 0.40 0.34 0.90 0.80 1.19 1.13 0.55 0.51
Description A nut with wings which allow the part to be manually turned.
Applications/Advantages
Used when a part is frequently assembled and disassembled at a place where torque greater than that achieved with finger pressure is notneeded.
Material Steel: Carbon steel adaptable to the cold-forging process.Stainless: 18-8 stainless steel.
Plating See Appendix-A for information about plating steel wing screws.
Nuts
141
Wing NutsStamped
A D
H
B
GC
E
T
*ANSI/ASME B18.17 does not specify dimensions for #4, 7/16 and 1/2 inch diameter type-D stamped wing nuts.
W GNI N STU - S DEPMATEMSA/ISNA*71.81B
eziSlanimoNrojaMcisaBro
foretemaiDdaerhT
sdaerhThcnIreP
A B C D E G H T
daerpSgniW thgieHgniWgniW
ssenkcihTneewteB
sgniWssoB
retemaiDssoB
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4 0211.0 04 67.0 37.0 93.0 73.0 61.0 31.0 32.0 93.0 63.0 70.0 21.0 40.0 20.0
6 0831.0 23 87.0 27.0 04.0 43.0 81.0 41.0 52.0 14.0 53.0 80.0 21.0 40.0 30.0
8 0461.0 63&23 87.0 27.0 04.0 43.0 81.0 41.0 52.0 14.0 53.0 80.0 21.0 40.0 30.0
01 0091.0 23&42 19.0 58.0 74.0 14.0 12.0 71.0 43.0 35.0 74.0 01.0 21.0 40.0 30.0
21 0612.0 82&42 90.1 30.1 74.0 14.0 12.0 71.0 43.0 35.0 74.0 01.0 21.0 50.0 40.0
4/1 0052.0 82&02 11.1 50.1 05.0 44.0 52.0 12.0 43.0 26.0 65.0 11.0 21.0 50.0 40.0
61/5 5213.0 42&81 03.1 42.1 95.0 35.0 03.0 62.0 64.0 37.0 76.0 41.0 81.0 60.0 50.0
8/3 0573.0 42&61 14.1 43.1 76.0 16.0 43.0 03.0 96.0 38.0 77.0 61.0 81.0 60.0 50.0
61/7 5734.0 41 57.1 27.1 76.0 46.0 03.0 72.0 37.0 00.1 79.0 91.0 02.0 70.0 40.0
2/1 0005.0 31 57.1 27.1 76.0 46.0 03.0 72.0 37.0 00.1 79.0 91.0 02.0 70.0 40.0
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Nuts
142
Wing Nuts Washer BaseZinc Alloy
Description A zinc alloy nut featuring a wide-diameter, integral washer base with a recessed wing design.
Applications/Advantages
Suitable for most wing nut applications, specifically in those where a separate flat washer would be used. Integral washer designeliminates need for other washers and speeds assembly time. Used with adjustment slots, oversized or offset holes, and soft surfaces
such as wood or plastic. Popular in displays, furniture and storm windows.
Material
Nuts are made from the zinc die cast alloy Zamak #3 which conforms to the following chemical composition requirements--Aluminum: 3.5-4.3%; Magnesium: 0.02-0.05%; Copper: 0.25%* max.; Iron: 0.10% max.; Lead: 0.005% max.; Cadmium: 0.004% max.;
Tin: 0.003% max.; Zinc: balance (*Note: Most commercial applications will accept copper content within the range of 0.25-0.75% withoutrejecting the product).
C
A
E
D
B F
H
G
WASHER-BASED WING NUTS
KanebridgePart
Number
DynacastPart
Number
ThreadSize
A B C D E F G H
WingSpread
TotalHeight
WasherOutsideDiameter
IndividualWingWidth
BetweenWings
WasherThickness
WingThickness
at Base
Boss &WasherHeight
0810NWA 232416 8-32 7/8 7/16 5/8 .207 .250 .032 .125 .182
1010NWA 232417 10-24 7/8 7/16 5/8 .207 .250 .032 .125 .182
1110NWA 232418 10-32 7/8 7/16 5/8 .207 .250 .032 .125 .182
1412NWA 232521 1/4-20 1 1/2 3/4 .234 .312 .035 .140 .205
1414NWA 232621 1/4-20 1 1/837/64 7/8 .260 .375 .040 .150 .225
3114NWA 232623 5/16-18 1 1/837/64 7/8 .260 .375 .040 .150 .225
3714NWA 232625 3/8-16 1 1/837/64 7/8 .260 .375 .040 .150 .225
NOTE: There is no single standard for washer-based wing nut dimensions. These values are offered as a guide; deviations from these specifications may occur.
Nuts
143
Conduit Lock NutsZinc Alloy
Description A zinc alloy nut with a single thread design and minimal surface area. The nut has integrally formed lobes protruding from its circuferenceat 60° intervals which enable it to be turned.
Applications/Advantages Used in the electrical industry as a component in cable connectors in order to make a connection into various electrical boxes.
MaterialNuts are made from the zinc die cast alloy Zamak #3 which conforms to the following chemical composition requirements--
Aluminum: 3.5-4.3%; Magnesium: 0.02-0.05%; Copper: 0.25%* max.; Iron: 0.10% max.; Lead: 0.005% max.; Cadmium: 0.004% max.;Tin: 0.003% max.; Zinc: balance (*Note: Most commercial applications will accept copper content within the range of 0.25-0.75% without
rejecting the product).
NNL
O
W
M
D
H
12°
T
12°
CONDUIT LOCK NUTS
NominalSize
N D L M O W H T
InsideDiameter
OutsideDiameter
Lobe-to-LobeDiameter
Minor ThreadDiameter
Opening inThread
Lobe Width Nut Height Tooth Depth
Max Min Max Min Max Min Max Min Max Min Max Min Max Min Max Min
1/2-14 0.870 0.860 1.005 0.995 1.130 1.120 0.759 0.747 0.134 0.114 0.176 0.156 0.140 0.125 0.021 0.011
3/4-14 1.058 1.048 1.260 1.250 1.380 1.370 0.970 0.958 0.140 0.130 0.255 0.245 0.167 0.157 0.030 0.020
Part Number Comparison
Size Kanebridge Number Dynacast Number Size Kanebridge Number Dynacast Number
1/2-14 50NLC 112303 3/4-14 75NLC 112304
NOTE: There is no single standard for Conduit nut dimensions. These values are offered as a guide; deviations from these specifications may occur.
Nuts
144
HeavyStyleSquare
F
G H H
Description A four-sided, internally threaded fastener with a washer-faced top side, and a flat or chamfered bottom. They are wider and thickerthan regular square nuts.
Applications/Advantages
For use with A307 Grade A or Grade B bolts.
Material Nuts shall be made from a carbon steel which conforms to the following chemical composition requirements--Carbon: 0.58% maximum; Phosphorus: 0.13% maximum
Hardness Rockwell B68 - C32
Proof Load Plain or Zinc-Plated: 90,000 psi.; Hot-Dip Galvanized: 68,000 psi.
Plating See Appendix-A for plating information.
HEAVY SQUARE NUTS ANSI/ASME B18.2.2
Nominal Size or Basic MajorDia. of Thread
F G H
Width Across Flats Width Across Corners Thickness
Max Min Max MIn Max Min
1/4 0.2500 0.500 0.488 0.707 0.640 0.266 0.218
5/16 0.3125 0.562 0.546 0.795 0.720 0.330 0.280
3/8 0.3750 0.688 0.669 0.973 0.889 0.393 0.341
7/16 0.4375 0.750 0.728 1.060 0.970 0.456 0.403
1/2 0.5000 0.875 0.850 1.237 1.137 0.520 0.464
5/8 0.6250 1.062 1.031 1.503 1.386 0.647 0.587
3/4 0.7500 1.250 1.212 1.768 1.635 0.774 0.710
7/8 0.8750 1.438 1.394 2.033 1.884 0.901 0.833
1 1.0000 1.625 1.575 2.298 2.132 1.028 0.956
1-1/8 1.1250 1.812 1.756 2.563 2.381 1.155 1.079
1-1/4 1.2500 2.000 1.938 2.828 2.631 1.282 1.187
1-3/8 1.3750 2.188 2.119 3.094 2.879 1.409 1.310
1-1/2 1.5000 2.375 2.300 3.359 3.128 1.536 1.433
Nuts
145
SquareRegularStyle
F
G H
Description A four-sided, internally threaded fastener with a flat bottom side and a chamfered, washer-crowned top.
Applications/Advantages
Designed for use with square bolts.
Material Nuts shall be made from a low carbon steel which conforms to the following chemical composition requirements--Carbon: 0.55%maximum; Phosphorus: 0.12% maximum; Sulfur: 0.23% maximum.
HardnessRockwell B68 - C32
Proof Load 90,000 psi.
Plating See Appendix-A for plating information.
REGULAR SQUARE NUTSANSI/ASME
B18.2.2
Nominal or Basic MajorDiameter of Thread
F G H
Width Across Flats Width Across Corners Thickness
Basic Max Min Max Min Basic Max Min
1/4 0.2500 7/16 0.438 0.425 0.619 0.554 7/32 0.235 0.203
5/16 0.3125 9/16 0.562 0.547 0.795 0.721 17/64 0.283 0.249
3/8 0.3750 5/8 0.625 0.606 0.884 0.802 21/64 0.346 0.310
7/16 0.4375 3/4 0.750 0.728 1.061 0.970 3/8 0.394 0.356
1/2 0.5000 13/16 0.812 0.788 1.149 1.052 7/16 0.458 0.418
5/8 0.6250 1 1.000 0.969 1.414 1.300 35/64 0.569 0.525
3/4 0.7500 1-1/8 1.125 1.088 1.591 1.464 21/32 0.680 0.632
7/8 0.8750 1-5/16 1.312 1.269 1.856 1.712 49/64 0.792 0.740
1 1.0000 1-1/2 1.500 1.450 2.121 1.961 7/8 0.903 0.847
1-1/8 1.1250 1-11/16 1.688 1.631 2.386 2.209 1 1.030 0.970
1-1/4 1.2500 1-7/8 1.875 1.812 2.652 2.458 1-3/32 1.126 1.062
1-1/2 1.5000 2-1/4 2.250 2.175 3.182 2.956 1-5/16 1.348 1.276
Nuts
146
Spring Nuts Flat Type
TINNERMAN® NUT ALTERNATIVES
W T
L
Description A one piece, self-locking fastener made of spring steel. The perimeter of the nut is rectangular in shape. Some variations have an archedbase and/or corners which are trimmed or turned.
Applications/Advantages
It reduces inventories by eliminating need for lockwashers and spanners. Its single thread engagement design makes it easy to apply andremove. Parts are reusable. Provides the correct amount of spring tension without damaging enamel, glass or porcelain surfaces.
Material SAE 1050 or higher carbon steel, with the exception of part# C105SS-440-4 which is made of stainless steel.
Hardness(Steel)
For material thickness 0.017-0.024 in., Rockwell 30N C40 minimum, C50 maximum.For material thickness 0.025-0.039 in., Rockwell 45N C40 minimum, C50 maximum.
Plating See Appendix-A for information on the plating of steel spring nuts.
STEEL SPRING NUTS FLAT TYPEEaton Corp.*,
SAE J891
Tinnerman ® PartNumber
Screw Size
L W T PERMORMANCE DATA
Length Width MaterialThickness
RecommendedInstallation Torque
(lb.-in.)
Ultimate TensileStrength (lb.)
Max Min
C105SS-440-4 4/40 .44 .25 .012 3 100
C430-1032-4 10/32 .75 .44 .017 - -
C7000-4-4 4A or B .38 .25 .022 9 300
C7000-632-4 6/32 .44 .28 .017 6 156
C7000-6-4 6A or B .50 .31 .025 12 425
C7000-832-4 8/32 .50 .31 .017 8 189
C7000-8-4 8A or B .63 .41 .028 20 534
C7000-1024-4 10/24 .63 .38 .022 14 274
C7000-10-4 10A or B .75 .50 .031 35 672
®Tinnerman is a registered trademark of the Eaton Corporation. Kanebridge’s spring nuts are not manufactured by or connected with the producers of Tinnerman® nuts.
Nuts
147
Spring NutsJ-Type
TINNERMAN® NUT ALTERNATIVESP
W T
L
Description A self-retaining spring steel fastener manufactured in the shape of a "J", enabling it to snap into place over the edge of a panel and hold itsposition.
Applications/Advantages
Same advantages as a flat-type spring nut, but more versatile. Can reduce assembly time by eliminating such steps as welding andriveting. Nut surface will accept paint without clogging inside the thread.
Material SAE 1050 or higher carbon steel.
Hardness For material thickness 0.017-0.024 in., Rockwell 30N C40 minimum, C50 maximum.For material thickness 0.025-0.039 in., Rockwell 45N C40 minimum, C50 maximum.
Plating See Appendix-A for information about the plating of steel spring nuts.
STEEL SPRING NUTS "J" T YPEEaton Corp.*,
SAE J891
Tinnerman ®
Part NumberScrew Size
P L W T PERFORMANCE DATA
Panel Range Length WidthMaterial
Thickness
RecommendedInstallation
Torque (lb.-in.)
UltimateTensile
Strength (lb.)
Max Min
C8019-632-4 6/32 .025-.040 .47 .50 .017 6 156
C8020-632-4 6/32 .045-.062 .47 .50 .017 6 156
C8022-632-4 6/32 .045-.062 .63 .31 .017 6 156
C8023-632-4 6/32 .025-.040 .81 .31 .017 6 156
C8024-632-4 6/32 .045-.062 .81 .31 .017 6 156C8025-6-4 6A or B .025-.040 .47 .50 .025 12 425
C8026-6-4 6A or B .045-.062 .47 .50 .025 12 425
C8029-6-4 6A or B .025-.040 .81 .31 .025 12 425
C8030-6-4 6A or B .045-.062 .81 .31 .025 12 425
C8031-832-4 8/32 .025-.040 .53 .50 .017 8 189
C8032-832-4 8/32 .045-.062 .52 .50 .017 8 189
C8035-832-4 8/32 .025-.040 .87 .41 .017 8 189
C8036-832-4 8/32 .045-.062 .87 .41 .017 8 189
C8037-8-4 8A or B .025-.045 .53 .50 .028 20 534
C8038-8-4 8A or B .045-.062 .53 .50 .028 20 534
C8041-8-4 8A or B .025-.040 .87 .41 .028 20 534
C8042-8-4 8A or B .045-.062 .86 .41 .028 20 534
C8043-1024-4 10/24 .025-.040 .59 .63 .022 14 274
C8044-1024-4 10/24 .045-.062 .59 .63 .022 14 274C8045-1024-4 10/24 .025-.040 .79 .38 .022 14 274
C8048-1024-4 10/24 .045-.062 .97 .38 .022 14 274
C8043-1032-4 10/32 .025-.040 .59 .63 .017 - -
C8049-10-4 10A or B .025-.040 .58 .63 .031 35 672
C8050-10-4 10A or B .045-.062 .58 .63 .031 35 672
C8053-10-4 10A or B .025-.040 .97 .50 .031 35 672
C8054-10-4 10A or B .045-.062 .97 .50 .031 35 672
®Tinnerman is a registered trademark of the Eaton Corporation. Kanebridge’s spring nuts are not manufactured by or connected with the producers of Tinnerman® nuts.
Nuts
148
Spring Nuts U-Type
P
W
L
T
Standard
TINNERMAN® NUT ALTERNATIVES
Description A self-retaining spring steel fastener manufactured in the shape of a "U", enabling it to snap into place over the edge of a panel and holdits position.
Applications/Advantages Same advantages as a J-Type nut, but used where the lower leg of the spring nut requires full bearing.
Material SAE 1050 or higher carbon steel.
Hardness For material thickness 0.017-0.024 in., Rockwell 30N C40 minimum, C50 maximum.For material thickness 0.025-0.039 in., Rockwell 45N C40 minimum, C50 maximum.
Plating See Appendix-A for information on the plating of steel spring nuts.
STEEL SPRING NUTS "U" T YPEEaton Corp.*,
SAE J891
Tinnerman ® PartNumber
Screw Size
P L W T PERFORMANCE DATA
Panel Range Length WidthMaterial
Thickness
RecommendedInstallation
Torque (lb.-in.)
UltimateTensile
Strength (lb.)
Max Min
C8090-632-4 6/32 .025-.040 .48 .50 .017 6 156
C8091-632-4 6/32 .045-.062 .48 .50 .017 6 156
C8093-632-4 6/32 .045-.062 .65 .31 .017 6 156
C8094-632-4 6/32 .025-.040 .82 .31 .017 6 156
C8095-632-4 6/32 .045-.062 .82 .31 .017 6 156
C8096-6-4 6A or B .025-.040 .48 .50 .025 12 425
C8097-6-4 6A or B .045-.062 .47 .50 .025 12 425
C8100-6-4 6A or B .025-.040 .81 .31 .025 12 425
C8101-6-4 6A or B .045-.062 .82 .31 .025 12 425
C8102-832-4 8/32 .025-.040 .52 .50 .017 8 189
C8103-832-4 8/32 .045-.062 .52 .50 .017 8 189
C8105-832-4 8/32 .045-.062 .67 .41 .017 8 189
C8106-832-4 8/32 .025-.040 .86 .41 .017 8 189
C8107-832-4 8/32 .045-.062 .87 .41 .017 8 189
C8108-8-4 8A or B .025-.040 .52 .50 .028 20 534
C8109-8-4 8A or B .045-.062 .52 .50 .028 20 534
C8112-8-4 8A or B .025-.040 .85 .41 .028 20 534C8113-8-4 8A or B .045-.062 .86 .41 .028 20 534
C8114-1024-4 10/24 .025-.040 .58 .63 .022 14 274
C8115-1024-4 10/24 .045-.062 .56 .63 .022 14 274
C8117-1024-4 10/24 .045-.062 .76 .38 .022 14 274
C8118-1024-4 10/24 .025-.040 .95 .38 .022 14 274
C8119-1024-4 10/24 .045-.062 .95 .38 .022 14 274
C8120-10-4 10A or B .025-.040 .56 .63 .031 35 672
C8121-10-4 10A or B .045-.062 .56 .63 .031 35 672
C8123-10-4 10A or B .045-.062 .76 .50 .031 35 672
C8124-10-4 10A or B .025-.040 .96 .50 .031 35 672
C8125-10-4 10A or B .045-.062 .95 .50 .031 35 672
®Tinnerman is a registered trademark of the Eaton Corporation. Kanebridge’s spring nuts are not manufactured by or connected with the producers of Tinnerman® nuts.
Nuts
149
Steel &Stainless Self-Clinching Nuts
E
T
AC
®
®
Description A round, internally threaded, one-piece fastener with a shank protruding from the internal circumference, and a knurled clinching ringsurrounding the shank. Both the shank and the clinching ring are integrally formed into the bottom side of the nut.
Applications/Advantages
Designed for use in thin sheet metal when load bearing threads are necessary. The nut is pressed into a pre-drilled or punched hole, thenforce is applied to the top of the nut until the bearing surface at the outside diameter of the bottom of the nut is flush with the sheet metal
to which it is attached.
MaterialSteel Stainless Steel
Carbon steel Type 303 stainless passivated to ASTM A 380
Heat Treatment Nuts are case-hardened. -
Plating See Appendix-A for information on zinc plating. None
For Use In Can be installed into metals of Rockwell hardness of B80 max. Can be installed into stainless sheets of Rockwell hardness of B70 max.
SELF-CLINCHING NUTS PEM®
SizeCatalog Part
Number(Steel nuts)
PEM® PartNumber
(Steel nuts)
ASheet
ThicknessHole Size inSheet +.003,
-.000
C E T Performance Datain Cold-Rolled Steel
ShankHeight
ShankDiameter
NutDiameter
±.01
NutHeight
±.01
Installation(lbs.)
Pushout(lbs.)
TorqueOut
(lbs.)Max Min Max
4-40-0 04-0NCL S-440-0-ZI .030 .030 .166 .165 .25 .07
2500-3500
105 13
4-40-1 04-1NCL S-440-1-ZI .038 .040 .166 .165 .25 .07 125 15
4-40-2 04-2NCL S-440-2-ZI .054 .056 .166 .165 .25 .07 230 18
4-40-3 S-440-3-ZI .087 .091 .166 .165 .25 .07 230 18
6-32-0 06-0NCL S-632-0-ZI .030 .030 .1875 .187 .28 .07
3000-6000
110 16
6-32-1 06-1NCL S-632-1-ZI .038 .040 .1875 .187 .28 .07 130 20
6-32-2 06-2NCL S-632-2-ZI .054 .056 .1875 .187 .28 .07 275 28
6-32-3 S-632-3-ZI .087 .091 .1875 .187 .28 .07 275 28
8-32-0 08-0NCL S-832-0-ZI .030 .030 .213 .212 .31 .09
4000-6000
110 26
8-32-1 08-1NCL S-832-1-ZI .038 .040 .213 .212 .31 .09 145 35
8-32-2 08-2NCL S-832-2-ZI .054 .056 .213 .212 .31 .09 285 45
8-32-3 S-832-3-ZI .087 .091 .213 .212 .31 .09 285 45
10-24-0 10-0NCL SS-024-0-ZI .030 .030 .250 .249 .34 .09
4000-9000
120 32
10-24-1 10-1NCL SS-024-1-ZI .038 .040 .250 .249 .34 .09 180 40
10-24-2 10-2NCL SS-024-2-ZI .054 .056 .250 .249 .34 .09 320 60
10-24-3 10-3NCL SS-024-3-ZI .087 .091 .250 .249 .34 .09 320 60
10-32-0 11-0NCL SS-032-0-ZI .030 .030 .250 .249 .34 .09 120 32
10-32-1 11-1NCL SS-032-1-ZI .038 .040 .250 .249 .34 .09 180 40
10-32-2 11-2NCL SS-032-2-ZI .054 .056 .250 .249 .34 .09 320 60
10-32-3 11-3NCL SS-032-3-ZI .087 .091 .250 .249 .34 .09 320 60
1/4-20-1 14-1NCL S-0420-1-ZI .054 .056 .344 .343 .44 .17
6000-8000 400 1501/4-20-2 14-2NCL S-0420-2-ZI .087 .091 .344 .343 .44 .17
1/4-20-3 14-3NCL S-0420-3-ZI .120 .125 .344 .343 .44 .17
5/16-18-1 31-1NCL S-0518-1-ZI .054 .056 .413 .411 .50 .23
6000-8000 420 230
5/16-18-2 31-2NCL S-0518-2-ZI .087 .091 .413 .411 .50 .23
5/16-18-3 31-3NCL S-0518-3-ZI .120 .125 .413 .411 .50 .23
5/16-24-1 32-1NCL S-0524-1-ZI .054 .056 .413 .411 .50 .23
5/16-24-2 32-2NCL S-0524-2-ZI .087 .091 .413 .411 .50 .23
®PEM is a registered trademark of Penn Engineering. Kanebridge’s clinch nuts are not manufactured by or connected with the producers of PEM® clinch nuts.
Nuts
150
Hex Coupling Nuts Steel
H
G
F
Description A double chamfered hex nut available in various widths and lengths. The length of the nut is greater than 2.5D where D equals the basicmajor thread diameter. Also referred to as rod couplings.
Applications/Advantages
Used to join two externally threaded parts of equal thread diameter and pitch, often two pieces of threaded rod.
Material 1010 - 1018 or equivalent steel. 12L14 steel is commonly used in domestically manufactured coupling nuts.
Hardness Rockwell B68 - C32
TensileStrength 60,000 psi. minimum
Plating See Appendix-A for plating information.
HEX COUPLING NUTSCoupling
Nut Supply
NominalSize and
Threads perInch
Basic MajorDiameter of
Thread
F G H
Width Across Flats Width Across Corners Length
Basic Max Min Max Min Basic Max Min
8-32 0.1640 5/16 0.312 0.302 0.361 0.344 5/8 0.64 0.61
10-24 0.1900 5/16 0.312 0.302 0.361 0.344 3/4 0.76 0.74
10-32 0.1900 5/16 0.312 0.302 0.361 0.344 3/4 0.76 0.74
1/4-20 0.2500 3/8 0.375 0.365 0.433 0.416 7/8 0.89 0.86
1/4-28 0.2500 3/8 0.375 0.365 0.433 0.416 7/8 0.89 0.86
5/16-18 0.3125 1/2 0.500 0.489 0.577 0.557 7/8 0.89 0.86
5/16-18 0.3125 1/2 0.500 0.489 0.577 0.557 1-1/8 1.13 1.11
5/16-24 0.3125 7/16 0.438 0.428 0.505 0.488 7/8 0.89 0.86
3/8-16 0.3750 1/2 0.500 0.489 0.577 0.557 1-1/8 1.13 1.11
3/8-16 0.3750 9/16 0.562 0.551 0.650 0.628 1-3/4 1.76 1.73
3/8-24 0.3750 1/2 0.500 0.489 0.577 0.557 1-1/8 1.13 1.11
1/2-13 0.5000 11/16 0.688 0.663 0.794 0.756 1-3/4 1.76 1.73
1/2-20 0.5000 5/8 0.625 0.613 0.722 0.698 1-1/4 1.26 1.24
5/8-11 0.6250 13/16 0.813 0.782 0.939 0.891 2-1/8 2.14 2.10
3/4-10 0.7500 1 1.000 0.963 1.155 1.097 2-1/4 2.27 2.22
7/8-9 0.8750 1-1/4 1.250 1.212 1.443 1.382 2-1/2 2.53 2.47
1-8 1.0000 1-3/8 1.375 1.325 1.588 1.511 2-3/4 2.78 2.72
NOTE: There is no single standard for coupling nut dimensions. These values are offered as a guide; deviations from these specifications may occur.
Nuts
151
Class 2B Internal Threads
Min.Major
Diameter
MinorDiameter
PitchLine
Axis of internal thread
INTERNAL THREADS - CLASS 2B ASME B1.1
Nominal Size& Threadsper Inch
SeriesDesignation
AllowanceMinor Diameter Pitch Diameter Major
Diameter
Min Max Min Max Tolerance Min
0-80 UNF 0.0005 0.0465 0.0514 0.0519 0.0542 0.0023 0.0600
1-64 UNC 0.0006 0.0561 0.0623 0.0629 0.0655 0.0026 0.0730
1-72 UNF 0.0006 0.0580 0.0635 0.0640 0.0665 0.0025 0.0730
2-56 UNC 0.0006 0.0667 0.0737 0.0744 0.0772 0.0028 0.0860
3-48 UNC 0.0007 0.0764 0.0845 0.0855 0.0885 0.0030 0.0990
4-40 UNC 0.0008 0.0849 0.0939 0.0958 0.0991 0.0033 0.1120
4-48 UNF 0.0007 0.0894 0.0968 0.0985 0.1016 0.0031 0.1120
5-40 UNC 0.0008 0.0979 0.1062 0.1088 0.1121 0.0033 0.1250
6-32 UNC 0.0008 0.104 0.114 0.1177 0.1214 0.0037 0.1380
8-32 UNC 0.0009 0.130 0.139 0.1437 0.1475 0.0038 0.1640
10-24 UNC 0.0010 0.145 0.156 0.1629 0.1672 0.0043 0.1900
10-32 UNF 0.0009 0.156 0.164 0.1697 0.1736 0.0039 0.1900
12-24 UNC 0.0010 0.171 0.181 0.1889 0.1933 0.0044 0.2160
1/4-20 UNC 0.0011 0.196 0.207 0.2175 0.2224 0.0049 0.2500
1/4-28 UNF 0.0010 0.211 0.220 0.2268 0.2311 0.0043 0.2500
5/16-18 UNC 0.0012 0.252 0.265 0.2764 0.2817 0.0053 0.3125
5/16-24 UNF 0.0011 0.267 0.277 0.2854 0.2902 0.0048 0.3125
3/8-16 UNC 0.0013 0.307 0.321 0.3344 0.3401 0.0057 0.3750
3/8-24 UNF 0.0011 0.330 0.340 0.3479 0.3528 0.0049 0.3750
7/16-14 UNC 0.0014 0.360 0.376 0.3911 0.3972 0.0061 0.4375
7/16-20 UNF 0.0013 0.383 0.395 0.4050 0.4104 0.0054 0.4375
1/2-13 UNC 0.0015 0.417 0.434 0.4500 0.4565 0.0065 0.5000
1/2-20 UNF 0.0013 0.446 0.457 0.4675 0.4731 0.0056 0.5000
9/16-12 UNC 0.0016 0.472 0.490 0.5084 0.5152 0.0068 0.5625
9/16-18 UNF 0.0014 0.502 0.515 0.5264 0.5323 0.0059 0.5625
5/8-11 UNC 0.0016 0.527 0.546 0.5660 0.5732 0.0072 0.6250
5/8-18 UNF 0.0014 0.565 0.578 0.5889 0.5949 0.0060 0.6250
3/4-10 UNC 0.0018 0.642 0.663 0.6850 0.6927 0.0077 0.7500
3/4-16 UNF 0.0015 0.682 0.696 0.7094 0.7159 0.0065 0.7500
7/8-9 UNC 0.0019 0.755 0.778 0.8028 0.8110 0.0082 0.8750
7/8-14 UNF 0.0016 0.798 0.814 0.8286 0.8356 0.0070 0.8750
Nuts
152
Min.Major
Diameter
MinorDiameter
PitchLine
Axis of internal thread
Internal Threads Class 2B
INTERNAL THREADS - CLASS 2B (CONTINUED) ASME B1.1
Nominal Size& Threadsper Inch
SeriesDesignation
AllowanceMinor Diameter Pitch Diameter Major
Diameter
Min Max Min Max Tolerance Min
1-8 UNC 0.0020 0.865 0.890 0.9188 0.9276 0.0088 1.0000
1-14 UNS 0.0017 0.923 0.938 0.9536 0.9609 0.0073 1.0000
1 1/8-7 UNC 0.0022 0.970 0.998 1.0322 1.0416 0.0094 1.1250
1 1/8-12 UNF 0.0018 1.035 1.053 1.0709 1.0787 0.0078 1.1250
1 1/4-7 UNC 0.0022 1.095 1.123 1.1572 1.1668 0.0096 1.2500
1 1/4-12 UNF 0,0018 1.160 1.178 1.1959 1.2039 0.0080 1.2500
1 3/8-6 UNC 0.0024 1.195 1.225 1.2667 1.2771 0.0104 1.3750
1 3/8-12 UNF 0.0019 1.285 1.303 1.3209 1.3291 0.0082 1.3750
1 1/2-6 UNC 0.0024 1.320 1.350 1.3917 1.4022 0.0105 1.5000
1 1/2-12 UNF 0.0019 1.410 1.428 1.4459 1.4542 0.0083 1.5000
1 5/8-6 UN 0.0025 1.445 1.475 1.5167 1.5274 0.0107 1.6250
1 5/8-8 UN 0.0022 1.490 1.515 1.5438 1.5535 0.0097 1.6250
1 3/4-5 UNC 0.0027 1.534 1.568 1.6201 1.6317 0.0116 1.7500
1 3/4-12 UN 0.0018 1.660 1.678 1.6959 1.7037 0.0078 1.7500
2-4.5 UNC 0.0029 1.759 1.795 1.8557 1.8681 0.0124 2.0000
2-12 UN 0.0018 1.910 1.928 1.9459 1.9538 0.0079 2.0000
2 1/4-4.5 UNC 0.0029 2.009 2.045 2.1057 2.1183 0.0126 2.2500
2 1/4-12 UN 0.0018 2.160 2.178 2.1959 2.2038 0.0079 2.2500
2 1/2-4 UNC 0.0031 2.229 2.267 2.3376 2.3511 0.0135 2.5000
2 1/2-12 UN 0.0019 2.410 2.428 2.4459 2.4540 0.0081 2.5000
2 3/4-4 UNC 0.0032 2.479 2.517 2.5876 2.6013 0.0137 2.7500
2 3/4-12 UN 0.0019 2.660 2.678 2.6959 2.7040 0.0081 2.7500
3-4 UNC 0.0032 2.729 2.767 2.8376 2.8515 0.0139 3.0000
3-12 UN 0.0019 2.910 2.928 2.9459 2.9541 0.0082 3.0000
3 1/4-4 UNC 0.0033 2.979 3.017 3.0876 3.1017 0.0141 3.2500
3 1/2-4 UNC 0.0033 3.229 3.267 3.3376 3.3519 0.0143 3.5000
3 3/4-4 UNC 0.0034 3.479 3.517 3.5876 3.6021 0.0145 3.7500
4-4 UNC 0.0034 3.729 3.767 3.8376 3.8523 0.0147 4.0000