Nut Compatibility Chart - Portland Bolt - Chalmers Construction

Planning, Development & Facilities 349 Magnolia Avenue

Glendale, California 91204 Tel: 818.507.0201 Fax: 818.507.4911

Project Name: Jefferson ES-12 Classroom Bldg. DSA No: A#:03-114361 , File#:19-41

District PO No: District Contract No: 113-15/16

REQUEST FOR INFORMATION (RFI)

To: Armond Mailan

From:Chalmers Construction Services Inc.

Required by: Ara Baghdasarians

RFI No. 076

Date: 12/12/16

Answered:

REFERENCE:

Drawing(s) - Specification(s) _______________ Page(s) ___

PROPOSED SOLUTIS:As the material of steel is same for both achor bolts and base plates so it is suggested to eliminates the nut and just use the 1" washer plate including the weld all around the washer and on top of it.

DISTRICT REPRESENTATIVE’S ADDITIONAL INFORMATION:

ARCHITECT’S RESPONSE:

*This response was provided FOR INFORMATION ONLY with no effect to the contract.*This response is a CLARIFICATION of the contract. (NO COST or TIME EFFECT)*This response is a MINOR CHANGE to the contract with no effect to the contract cost or time. (NO COST or TIMEEFFECT) **This response CHANGES the contract with an anticipated effect to contract cost and/or time. (COST/TIME EFFECT) The Contractor is to prepare a Change Order Proposal before proceeding.

* This does not modify contract cost or time. If the recipient believes that the RFI has any effect on contract cost and/ortime, the recipient shall respond in writing in accordance with Contract provisions.

CONTRACTOR’S REQUEST:

As the installed anchor bolts on grid line 2 ( Between gridlines B-E ) are +/- 1" lower

than proposed elevation so It will not be enough threads out for anchor bolts after

installing the washers and nuts.

Same situation for few other base plate's anchors on different locations which It will

not be enough threads out after installing the washer and nut. ( Please Advice ) Based

on this also the 2" indicated non-shrink grout underneath the base plate will be 3".

( PLease confirm )

**See attached pictures**

>837 North Spring Street, Third Floor, Los Angeles, CA 90012 323 475 8075 / nacarchitecture.com

Seattle / Spokane / Los Angeles

January 09, 2017 Issued as response attachment to RFI #76 Re: GUSD Jefferson ES ORG response to RFI #76 DSA A#03-114361 Architect’s Response to RFI #076 DSA has approved the submitted CCD#010 which is now attached to the response to RFI#076. The CCD#010 addresses the grout and anchor bolt issues, but additional documentation for clarity has been provided as noted below. Testing shall be coordinated with the project Testing Lab and in keeping with Section #4 of DSA IR 17-8 (issued by DSA on 01-12-11). Below is from email of 12/23/2016, from Brad Brewer, NAC

• RFI#76: Low anchor bolts and grouting and shear lug o Chalmers confirmed that they will utilize “…we will use Sika 328 for locations that the grout

thickness is more than 2” “ o Chalmers confirmed the coupler nut solution is preferred, and steel fabricator provided

recommendation of coupler model number. Please confirm coupler meets ATSM parameters set in the DSA Approved CCD#010 (cut sheet documents for coupler provided by Chalmers are included in RFI#076 reference materials of response)

o Chalmers confirmed that the Steel Fabricator has enough tolerance, in keeping with the Contract Documents, to account for anchor bolts that are 1/8” short. (email from Chalmers is provide by Chalmers are included in RFI#076 reference materials of response)

NAC Response to RFI#076, as coordinated with KPFF Structural and discussed with GUSD, BPI and Chalmers. \\nac\100\it\nac-forms\2016-form-updates\don potts\new forms\word\general\letterhead.docx

RFI#076 response from NAC 01/09/2017

26

APPROVED DIV. OF THE STATE ARCHITECT

LOS ANGELES REGIONAL OFFICE

SS FLS AC

DATE



lzeitoun

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SSK8

SSK8

SSK8

<ASREVISED>

12-28-2016 CCD-010A10

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10

10

CCD-A010



SS FLS AC

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<ASREVISED>

SSK8

SSK10

12-28-2016 CCD-010A

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10

CCD-A010



SS FLS AC

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<ASREVISED>

SSK8

SSK8

SSK10

SSK10

12-28-2016 CCD-010A

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10 CCD-A010



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DSA FILE NUMBER: 1941DSA APPLICATION NUMBER: 03114363PROJECT NAME: Jefferson ES ORG

SSK008REFERENCE DRAWING 1/S610

NEW DETAILDATE: 12.28.2016

CCD 010

2" M

IN T

O 4

" MA

X

SSK008

6" M

IN T

O 8

"M

AX

EM

BE

D

1 1/

2" M

IN

SSK009 ROD COUPLER WHERE TOP OF THREADED

ROD HAS LESS THAN 0" OF PROJECTIONTHROUGH NUT AT TOP OF BASE PLATE

NTS

CCD-A010



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CCD 010

NOTES:1. SEE 1/S618 FOR BALANCE OF INFORMATION NOT SHOWN.

2" M

IN, 3

" MA

X

1" MAXTYP

NONSHRINKHISTRENGTHGROUT

SHORT ASTM A354 GRADEBD ANCHOR ROD PER 1/S618

T.O. FOUNDATIONPER PLAN

CHIPOUT AND SOLIDGROUT

BRACED FRAMEBASE PLATE

ASTM A563 DHCOUPLING NUT

EQ

EQ

ASTM A354 GRADEBD THREADED RODTO MATCH DIA OFSHORT ROD BELOW

BRACED FRAME BASE ANCHOR ROD EXTENSION

CCD-A010



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CCD 010

NOTES:1. SEE 5/S600 FOR BALANCE OF INFORMATION NOT SHOWN.

2" M

IN, 3

" MA

X

1" MAXTYP

NONSHRINKHISTRENGTHGROUT

SHORT ASTM A307 HEXHEAD ANCHOR BOLT PER5/S600

T.O. FOUNDATIONPER PLAN

CHIP OUT AND SOLIDGROUT

COLUMN BASEPLATE

ASTM A563 ACOUPLING NUT

EQ

EQ

ASTM A36ALLTHREAD RODTO MATCH DIA OFHEX HEAD ANCHORBOLT BELOW

GRAVITY COLUMN BASE ANCHOR ROD EXTENSION

CCD-A010



SS FLS AC

DATE



lzeitoun

DATE 01/05/2017


RFI#076 Initial Reference Materials/photos:Provided by Chalmers with initial RFI #076Coversheet

From: Ara BaghdasarianTo: Bradford BrewerCc: [email protected]: Anchor boltsDate: Wednesday, December 14, 2016 1:36:46 PMAttachments: IMG_0749-14-12-16-09-07.png

Hello Brad,Please disregard anchors that are low 1/8”. After we sent you previous email, I talked to steel suband he told me that he has enough tolerance to adjust the 1/8”. So top of nut will be flush withanchor.Three steel plates on Grid line 2 are the ones that needed to be fix. Thank you, Sincerely, Ara BaghdasarianChalmers Construction Services Inc2600 Foothill Blvd. Suite 304La Crescenta CA 91214Office 818-957-4521Fax 818-957-4223Cell 818-220-2641

RFI#076 Reference Materials: Provided by Chalmersvia email 12/14/2016

12/20/16, 2(38 PMNut Compatibility Chart - Portland Bolt

Page 1 of 2http://www.portlandbolt.com/technical/nut-compatibility-chart/

Nut Compatibility Chart

Grade of Bolt Surface Finish Nominal Size Inches

A563 Grade and ANSI Nut Style

Recommended Suitable

Hex Heavy Hex Hex Heavy Hex

A307 Grade A & C Any

⁄ to 1 ⁄ A B,D,DH A,B,C,D,DH,DH3

>1 ⁄ to 2 A A C,D,DH,DH3

>2 to 4 A C,D,DH,DH3

A307 Grade B Any


>1 ⁄ to 2 A A

>2 to 4 A

A325 Type 1Plain ⁄ - 1 ⁄ C C3,D,DH,DH3

Galvanized ⁄ - 1 ⁄ DH

A325 Type 3 Plain ⁄ - 1 ⁄ C3 DH3

A354 Grade BC

Plain⁄ to 1 ⁄ C D,DH C3,D,DH,DH3

>1 ⁄ to 4 C C3,D,DH,DH3

Galvanized⁄ to 1 ⁄ DH

>1 ⁄ to 4 DH

A354 Grade BD Plain⁄ to 1 ⁄ DH DH D,DH,DH3

>1 ⁄ to 4 DH DH3

A449

Plain⁄ to 1 ⁄ B D,DH B,C,C3,D,DH,DH3

>1 ⁄ to 3 A C,C3,D,DH,DH3

Galvanized⁄ to 1 ⁄ DH D,DH D

>1 ⁄ to 3 DH D

A490 Type 1 Plain ⁄ - 1 ⁄ DH DH3

A490 Type 3 Plain ⁄ - 1 ⁄ DH3

A687Plain ⁄ - 3 D DH,DH3

Galvanized ⁄ - 3 DH


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[email protected](800) 547-6758


12/20/16, 2(38 PMNut Compatibility Chart - Portland Bolt

Page 2 of 2http://www.portlandbolt.com/technical/nut-compatibility-chart/

F1554 Grade 36 Any >1 ⁄ to 4 A C,D,DH,DH3

F1554 Grade 55Plain


>1 ⁄ to 4 A C,D,DH,DH3

Galvanized ⁄ to 4 A C,D,DH,DH3

F1554 Grade 105Plain

⁄ to 1 ⁄ D DH,DH3

>1 ⁄ to 3 DH DH3

Galvanized ⁄ to 3 DH DH3

1. The availability of A563 grade DH nuts in nominal sizes 3/4″ and larger is very limited and generally availableonly on special orders of 50,000 or more. For smaller quantities, ASTM A194 grade 2H should be considered.

ASTM A194 Nut Compatibility ChartGrade of Bolt A194 Heavy Hex Nut Grade

A193 Grade B7 2H or 4 or 7

A193 Grade B8 (Class 1 and 2) 8

A193 Grade B8M (Class 1 and 2) 8M

A320 Grade L7 4 or 7

A320 Grade B8 (Class 1 and 2) 8

A320 Grade B8M (Class 1 and 2) 8M

For Class 2 stainless steel grades, strain hardened nuts available as a supplementary requirement

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12/20/16, 2(38 PMHex Coupling Nuts - Portland Bolt

Page 1 of 3http://www.portlandbolt.com/products/nuts/hex-coupling/

Related ProductsSleeve NutsTurnbucklesWashers

Related LinksCoupling Nut ThreadEngagementGalvanized NutsTapped OversizeCoupling Nut Grades

A194 A563 F594

Hex couplers are used to connect two pieces of threaded material. Hex andheavy hex couplers are threaded right hand. If a right hand-left hand coupler isneeded, consider using a sleeve nut.

See our nut compatibility chart to determine the compatible hex coupler for aspecific grade of bolt. Since hot-dip galvanizing typically adds 2.2 to 5 mils ofthickness to the threaded portion of a fastener, galvanized couplers are tappedoversize to compensate for the corrosion resistant coating on the bolts.

StockDiameters: 1/2″ – 1″Origin: Domestic and importFinish: Plain and hot-dip galvanizedGrades: A563 (grades A and DH)

AvailableDiameters: 1/2″ – 6″Origin: Domestic and importFinish: Plain and hot-dip galvanizedGrades: A563 (grades A, C, and DH), A194 grade 2H

DimensionsFinished Hex Coupler Pattern

Nomi‐nal

Size

F C H Part Numbers

Width AcrossFlats

WidthAcrossCorners

Length/Thick‐ness Import

Basic

Max Min Max Min Basic

Max Min Plain Galva‐nized

Hex Coupling Nuts

1 11 3

[email protected](800) 547-6758




⁄ ⁄ 0.688 0.663 0.794 0.756 1 ⁄ 1.760 1.690 12338 17525

⁄ ⁄ 0.813 0.782 0.939 0.891 2 ⁄ 2.135 2.067 12559 18195

⁄ 1 1.000 0.963 1.155 1.097 2 ⁄ 2.260 2.190 12557 17526

⁄ 1 ⁄ 1.250 1.212 1.443 1.382 2 ⁄ 2.510 2.440 12558 19504

1 1 ⁄ 1.375 1.325 1.588 1.511 2 ⁄ 2.760 2.690 - 18494

1 ⁄ 1 ⁄ 1.500 1.450 1.732 1.653 3 3.010 2.940 18394 -

1 ⁄ 1 ⁄ 1.625 1.575 1.876 1.825 3 3.010 2.940 18994 17529

1 ⁄ 2 2.000 1.950 2.309 2.275 3 ⁄ 3.510 3.440 - -

Dimensions per ASME B18.2.2 2010Some dimensions may vary by supplier

Heavy Hex Coupler Pattern

Nominal

Size

F C H Part Numbers

Width AcrossFlats

WidthAcrossCorners

ThicknessA563DH

Domestic

Basic

Max Min Max Min Basic

Max Min Plain Galva‐nized

⁄ ⁄ 0.875 0.850 1.010 0.969 1 ⁄ - - - -

⁄ 1 ⁄ 1.062 1.031 1.227 1.175 1 ⁄ - - 17543 17544

⁄ 1 ⁄ 1.250 1.212 1.443 1.382 2 ⁄ - - - 17527

⁄ 1 ⁄ 1.438 1.394 1.660 1.589 2 ⁄ - - - -

1 1 ⁄ 1.625 1.575 1.876 1.796 3 - - - 12343

1 ⁄ 1 ⁄ 1.812 1.756 2.093 2.002 3 ⁄ - - - -

1 ⁄ 2 2.000 1.938 2.309 2.209 3 ⁄ - - 17547 17548

1 ⁄ 2 ⁄ 2.375 2.300 2.742 2.622 4 ⁄ - - 17551 17552

1 ⁄ 2 ⁄ 2.562 2.481 2.959 2.828 4 ⁄ 4.91 4.83 - -

1 ⁄ 2 ⁄ 2.750 2.662 3.175 3.035 5 ⁄ 5.29 5.21 17553 17554

1 ⁄ 2 ⁄ 2.938 2.844 3.392 3.242 5 ⁄ 5.67 5.58 - -

2 3 ⁄ 3.125 3.025 3.608 3.449 6 6.04 5.95 17555 17556

2 ⁄ 3 ⁄ 3.500 3.388 4.041 3.862 6 ⁄ 6.80 6.70 - -

2 ⁄ 3 ⁄ 3.875 3.750 4.474 4.275 7 ⁄ 7.55 7.44 - -

2 ⁄ 4 ⁄ 4.250 4.112 4.907 4.688 8 ⁄ 8.31 8.19 - -

3 4 ⁄ 4.625 4.475 5.340 5.102 9 9.06 8.94 - -

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1 3




3 ⁄ 5 5.000 4.838 5.774 5.515 9 ⁄ 9.81 9.68 - -

3 ⁄ 5 ⁄ 5.375 5.200 6.207 5.928 10 ⁄ 10.57 10.43 - -

3 ⁄ 5 ⁄ 5.750 5.562 6.640 6.341 11 ⁄ 11.32 11.17 - -

4 6 ⁄ 6.125 5.925 7.073 6.755 12 12.08 11.92 - -

4 ⁄ 6 ⁄ 6.875 6.650 7.939 7.581 13 ⁄ - - - -

5 7 ⁄ 7.625 7.375 8.805 8.408 15 - - - -

Heavy coupler dimensions are not defined by ASME 18.2.2. The width acrossthe flats and corners match the dimensions of a heavy hex nut.

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RFI#076 Reference Materials: Anchor BoltDimension Shy of Being Flush Provided byChalmers via email 12/14/2016

RFI#076 Reference Materials: Grout Thicknesses Exhibit,Provided by Chalmers via email 12/15/2016

RFI#076 Reference Materials: Grout Thicknesses Exhibit, Provided by Chalmers via email 12/15/2016