High Tensile Structural Bolts & Nuts - Non-Preloaded 8.8

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Non-Preloaded

Thread size d M12 M16 M20 M24 M30 M36

p pitch of thread 1.75 2 2.5 3 3.5 4

a max. 5.25 6 7.5 9 10.5 12

cmax. 0.6 0.8 0.8 0.8 0.8 0.8

min. 0.15 0.2 0.2 0.2 0.2 0.2

da max. 13.7 17.7 22.4 26.4 33.4 39.4

dw min. 17.4 22.5 27.7 33.2 42.7 51.1

e min. 21.1 26.75 32.95 39.55 50.85 60.79

k

nom. 7.5 10 12.5 15 18.7 22.5

max. 7.68 10.18 12.85 15.35 19.12 22.92

min. 7.32 9.82 12.15 14.65 18.28 22.08

r min. 0.6 0.6 0.8 0.8 1 1

s nom. max. 19 24 30 36 46 55

min. 18.67 23.67 29.16 35 45 53.8

Dimensions apply prior to coating

The table shows popular diameters, other diameters can be supplied provided the quantity is suffi cient to warrant manufacture.

Fully Threaded Bolts / Setscrews & Standard Thread Bolts

General Requirements BS 4190

Threads BS 3643 Parts 1 & 2 tolerance class 6g

Materials & Manufacture BS EN ISO 898-1 Property Classes 8.8

Mechanical Properties BS EN ISO 898-1 Property Classes 8.8

Dimensions & Tolerances DIN 933 (Setscrews) & DIN 931 (Bolts)

Finish / Coatings

Self Colour / Black BS 4190 - as processed

Zinc Electroplated BS 7371-3 or BS EN ISO 4042

Hot Dip Galvanized BS 729 & BS 7371 Part 6

Product Marking BS EN ISO 898-1

All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 1 of 6

Dimensions of Fully Threaded Bolts / Setscrews Characteristic Standard

Nominal Length mmTolerance

Over Up to and including

30 50 ± 1.25

50 80 ± 1.5

80 120 ± 1.75

120 180 ± 2

180 250 ± 2.3

Tolerance on nominal length for Fully Threaded Bolts / Setscrews and Standard Thread Bolts

Certifi cation

Property Class 8.8 for Fully Threaded Bolts / Setscrews and Standard Thread Bolts are supplied with a Test Certifi cate

All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 2 of 6

Head Marking

M16

50

8.8

Fully Threaded Bolts / SetscrewsFully Threaded Bolts / SetscrewsThe actual arrangement of the marking may

vary from that shown

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All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 3 of 6

Proof Load, Ultimate Tensile Load & Hardness of bolts

Nominal Dia, & Thread Pitch

Stress Area

Property Class 8.8

Proof Loadmin

Tensile Loadmin

Hardness Rockwell HRC

mm2 kN kN min max

M12 x 1.75 84.3 50.7 70 23 34

M16 x 2 157 94.5 130 23 34

M20 x 2.5 245 147 203 23 34

M24 x 3 353 212 293 23 34

M30 x 3.5 561 337 466 23 34

M36 x 4 817 490 678 23 34

Thread size d M12 M16 M20 M24 M30 M36

p pitch of thread 1.75 2 2.5 3 3.5 4

b1) 30 38 46 54 66 78

2) 36 44 52 60 72 84

3) 49 57 65 73 85 97

cmax. 0.6 0.8 0.8 0.8 0.8 0.8

min. 0.15 0.2 0.2 0.2 0.2 0.2

da max. 13.7 17.7 22.4 26.4 33.4 39.4

dsmax. 12 16 20 24 30 36

min. 11.73 15.73 19.48 23.48 29.48 35.38

dw min. 17.4 22.5 27.7 33.2 42.7 51.1

e min. 21.1 26.75 32.95 39.55 50.85 60.79

knom. 7.5 10 12.5 15 18.7 22.5

max. 7.68 10.18 12.85 15.35 19.12 22.92

min. 7.32 9.82 12.15 14.65 18.28 22.08

r min. 0.6 0.6 0.8 0.8 1 1

s nom. max. 19 24 30 36 46 55

min. 18.67 23.67 29.16 35 45 53.8

1) for l < 125mm

2) for l > 125mm < 200mm

3) for l > 200mm

Dimensions apply prior to coating

The table shows popular diameters, other diameters can be supplied provided the quantity is suffi cient to warrant manufacture.

Dimensions of Standard Thread Bolts

BoltProperty Class & Finish

supplied withNut

Property Class & Finish

8.8 - Self Colour 8 - Self Colour

8.8 - Zinc Electroplated 8 - Zinc Electroplated

8.8 - Hot Dip Galvanized 10 - Hot Dip Galvanized

Bolt and Nut combinations supplied

Certifi cation

Property Class 8.8 for Fully Threaded Bolts / Setscrews and Standard Thread Bolts are supplied with a Test Certifi cate

All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 4 of 6

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8.8

Standard Thread BoltsThe actual arrangement of the marking may

vary from that shown

Thread size d M12 M16 M20 M24 M30 M36

p pitch of thread 1.75 2 2.5 3 3.5 4

damax. 13 17.3 21.6 25.9 32.4 38.9

min. 12 16 20 24 30 36

dw min. 17.2 22.2 28.2 33.2 42.7 51.1

e min. 21.1 26.75 32.95 39.55 50.85 60.79

mmax. = nom 10 13 16 19 24 29

min. 9.64 12.3 14.9 17.7 22.7 27.4

smax. = nom 19 24 30 36 46 55

min. 18.67 23.67 29.16 35 45 53.8

Dimensions apply prior to coating

Nuts

General Requirements BS 4190

ThreadsSelf Colour / Zinc Electroplated BS 3643 Parts 1 & 2 tolerance class 6H

Hot Dip Galvanized BS 3643 Parts 1 & 2 tolerance class 6H + 0.4mm

Materials & Manufacture BS 4190 Property Classes 8 & 10

Mechanical Properties

Self Colour / Zinc Electroplated BS 4190 Property Class 8

Hot Dip Galvanized DIN 267 Part 10 Property Class 10

Dimensions & Tolerances DIN 934

Finish / Coatings

Self Colour / Black BS 4190 - as processed

Zinc Electroplated BS 7371-3 or BS EN ISO 4042

Hot Dip Galvanized BS 729 & BS 7371 Part 6

Product Marking BS 4190

All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 5 of 6

Dimensions of Nuts Characteristic Standard

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Proof Load of Nuts

Nominal Dia, & Thread Pitch

Stress Area

Proof Loads min

Property Class 8 Standard 6H fi t1

Property Class 10 Overtapped

6H + 0.40mm fi t2

mm2 kN kN

M12 x 1.75 84.3 67 78.1M16 x 2 157 125 150M20 x 2.5 245 196 236M24 x 3 353 282 342M30 x 3.5 561 448 551M36 x 4 817 653 8081 Nut fi nish self colour or zinc electroplated2 Nut fi nish hot dip galvanized

Nominal size of bolt or screw

BS 4320 Form ‘E’ DIN 125

Inside Diameter

d1

Outside Diameter

d2

Thickness

s

Inside Diameter

d1

Outside Diameter

d2

Thickness

s

max min max min max min max min max min max min

M12 14.5 14 24 23.2 2.8 2.2 13.43 13 24 23.48 2.7 2.3

M16 18.5 18 30 29.2 3.6 2.4 17.43 17 30 29.48 3.3 2.7

M20 22.6 22 37 35.8 3.6 2.4 21.52 21 37 36.38 3.3 2.7

M24 26.6 26 44 42.8 4.6 3.4 25.52 25 44 43.38 4.3 3.7

M30 33.8 33 56 54.5 4.6 3.4 31.62 31 56 55.26 4.3 3.7

M36 39.8 39 66 64.5 6.0 4.0 37.62 37 66 65.26 5.6 4.4

Dimensions apply prior to coating

Either BS 4320 Form ‘E’ washers or DIN 125 washers may be supplied depending on availability

Washers

General Requirements BS 4320 Section 2 Normal Diameter (Form E)

Materials & Manufacture BS 4320 Section 2

Dimensions & Tolerances BS 4320 Section 2 (Form E) or DIN 125

Finish / Coatings

Self Colour / Black BS 4190 - as processed

Zinc Electroplated BS 7371-3 or BS EN ISO 4042

Hot Dip Galvanized BS 729 & BS 7371 Part 6

All dimensions are in millimetres

High Tensile Structural Bolts & Nuts- Non-Preloaded 8.8

Issue: 2Date: 01/09/07Approved: M.R. TiddyPage: 6 of 6

Dimensions of Washers

Characteristic Standard

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Whilst this information is provided in good faith, no member of the Andaray group of companies shall be under any responsibility or liability in respect of errors or information that is found to be incorrect or for any relience the user may place on it.