U.S. Department 1200 New Jersey Ave., SE 

of Transportation Washington, D.C. 20590 

Federal Highway 

Administration February 9, 2017 

In Reply Refer To: 

HSST-1/SS-182 

Greg Kirchgenser 

Xcessories Squared and Allied Tube & Conduit 

P.O. Box 135 

Auburn, Illinois 62615 

Dear Mr. Kirchgenser: 

This letter is in response to your July 28 and 29, 2016, requests for the Federal Highway 

Administration (FHW A) to review a roadside safety device, hardware, or system for eligibility 

for reimbursement under the Federal-aid highway program. This FHWA letter of eligibility is 

assigned FHW A control number SS-182 and is valid until a subsequent letter is issued by FHW A 

that expressly references this device. 

Decision 

The following devices are eligible, with details provided in the form which is attached as an 

integral part of this letter: 

• MASSH-400 Breakaway Slip Base System for Square Steel Tube Sign Supports 

Scope of this Letter 

To be found eligible for Federal-aid funding, new roadside safety devices should meet the crash 

test and evaluation criteria contained in the American Association of State Highway and 

Transportation Officials'(AASHTO) Manual for Assessing Safety Hardware (MASH). 

However, the FHW A, the Department of Transportation, and the United States Government do 

not regulate the manufacture of roadside safety devices. Eligibility for reimbursement under the 

Federal-aid highway program does not establish approval, certification or endorsement of the 

device for any particular purpose or use. 

This letter is not a determination by the FHWA, the Department ofTransportation, or the United 

States Government that a vehicle crash involving the device will result in any particular 

outcome, nor is it a guarantee of the in-service performance of this device. Proper 

manufacturing, installation, and maintenance are required in order for this device to function as 

tested. 

This finding of eligibility is limited to the crashworthiness of the system and does not cover other 

structural features, nor conformity with the Manual on Uniform Traffic Control Devices. 
2 

Eligibility for Reimbursement 

FHW A previously issued an eligibility letter for the roadside safety system described in your 

request. Your request now identifies a modification to that roadside safety system. 

The original roadside safety device information is provided here: 

Name of system: MASSH-400 

Type of system: Breakaway Slip Base System for Square Steel Tube Sign Supports 

Date of original request: January 26, 2016 

Original FHW A eligibility letter: April 16, 2016 

FHW A Control number: SS-180 

The modification(s) consists of the following changes: 

1. 	 Substitution of 5 %-inch long A325 bolt for the original 6-inch long bolt to eliminate the 

need for an additional washer. 

2. 	 Use of Redi-Torque bolt instead to standard bolt requiring specific torqueing during 

installation. 

3. 	 Holes in the side of the slip base are lowered by 7/8 inch in order that the same part may 

be used for the upper hinge mechanism. 

FHW A concurs with the recommendation of the accredited crash testing laboratory as stated 

within the attached form. 

Full Description of the Eligible Device 

The device and supporting documentation, including reports of the crash tests or other testing 

done, videos of any crash testing, and/or drawings of the device, are described in the attached 

form. 

Notice 

If a manufacturer makes any modification to any of their roadside safety hardware that has an 

existing eligibility letter from FHW A, the manufacturer must notify FHW A of such modification 

with a request for continued eligibility for reimbursement. The notice of all modifications to a 

device must be accompanied by: 

o 	 Significant modifications - For these modifications, crash test results must be 

submitted with accompanying documentation and videos. 

o 	 Non-signification modifications - For these modifications, a statement from the crash 

test laboratory on the potential effect of the modification on the ability of the device 

to meet the relevant crash test criteria. 

FHW A's determination of continued eligibility for the modified hardware will be based on 

whether the modified hardware will continue to meet the relevant crash test criteria. 
3 

You are expected to supply potential users with sufficient information on design, installation and 

maintenance requirements to ensure proper performance. 

You are expected to certify to potential users that the hardware furnished has the same chemistry, 

mechanical properties, and geometry as that submitted for review, and that it will meet the test 

and evaluation criteria of the MASH. 

Issuance of this letter does not convey property rights of any sort or any exclusive privilege. This 

letter is based on the premise that information and reports submitted by you are accurate and 

correct. We reserve the right to modify or revoke this letter if: (1) there are any inaccuracies in 

the information submitted in support of your request for this letter, (2) the qualification testing 

was flawed, (3) in-service performance or other information reveals safety problems, (4) the 

system is significantly different from the version that was crash tested, or (5) any other 

information indicates that the letter was issued in error or otherwise does not reflect full and 

complete information about the crashworthiness of the system. 

Standard Provisions 

• 	 To prevent misunderstanding by others, this letter of eligibility designated as FHWA 

control numbers SS-182 shall not be reproduced except in full. This letter and the test 

documentation upon which it is based are public information. All such letters and 

documentation may be reviewed upon request. 

• 	 This letter shall not be construed as authorization or consent by the FHWA to use, 

manufacture, or sell any patented system for which the applicant is not the patent holder. 

• 	 Ifthe subject device is a patented product it may be considered to be proprietary. If 

proprietary systems are specified by a highway agency for use on Federal-aid projects: 

(a) they must be supplied through competitive bidding with equally suitable unpatented 

items; (b) the highway agency must certify that they are essential for synchronization 

with the existing highway facilities or that no equally suitable alternative exists; or (c) 

they must be used for research or for a distinctive type of construction on relatively short 

sections of road for experimental purposes. Our regulations concerning proprietary 

products are contained in Title 23, Code of Federal Regulations, Section 635.411. 

Sincerely, 

Scott T. Johnson 

Acting Director, Office of Safety 

Technologies 

Office of Safety 

Enclosures 
Version 10.0 (05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

Date of Request: July 28, 2016 I (i' New l' Resubmission 

Name: Greg Kirchgesner 

.... 

<II Company: Xcessories Squared and Allied Tube & Conduit ...... 

...... ·e Address: P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. Harvey, IL 60426 

..c 

:::::i 

II) Country: USA 

To: Michael S. Griffith, Director 

FHWA, Office of Safety Technologies 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device & Testing Criterion - Enter from right to left starting with Test Level Fl 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'SS': Breakaway Sign 

Supports, Mailboxes, & 

other small sian suooorts 

l' Physical Crash Testing 

(i' Engineering Analysis 

MASSH-400 

AASHTOMASH TL3 

By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH. 

Individual or Organization responsible for the product: 

Contact Name: Greg Kirchgesner Same as Submitter ~ 

Company Name: Xcessories Squared and Allied Tube & Conduit Same as Submitter ~ 

Address: P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. 11­ -··-· · fl ,..,...A,,.. GI Same as Submitter ~ 

Country: USA Same as Submitter ~ 

Enter below all disclosures of financial interests as required by the FHWA ' Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

No ongoing financial interests exist between the testing facility and the manufacturing companies. The only 

financial occurrence was the contract testing fee for the required MASH testing. 
Version 10.0 (05/16) 

Page 2 of 4 

PRODUCT DESCRIPTION 

(' New Hardware or Modification to Non-Significant Significant Modification • Existing Hardware 

The MASSH-400 Multi-directionally Activated Sign Support Hardware system, which was jointly developed by 

Xcessories Squared and Allied Tube & Conduit, has been reviewed by a few states. Some of them have 

identified products they currently use which they would like to be able to use with the MASSH-400 in place of 

product that was used when it was crash tested. Many of those products have also been tested. We 

developed a Redi-Torque bolt that is the same grade and size as the bolts used in the crash test. They are 

different only by containing an additional hex head which twists off during installation. This would establish 

the proper torque during installation resulting in the same clamping force between the two slip plates. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission that 

the Modification to Existing Hardware is deemed Non-significant for the device listed above to meet the MASH 

criteria. 

Engineer Name: Roger P. Bligh 

Digitally signed by Bl igh, Roger P 

ON: posta1Code=77843, o:::T AMU-SIGN, street=Texas A&M University, st= TX, Engineer Signature: Bligh, RogerP l::College Station, c=US, cn=Bligh, Roger P, email=rbligh@tamu.edu 

Date: 2016.07.29 16:32:19 -0S'OO' 

Address: Texas A&M Transportation Institute Same as Submitter D ""\ 1 ""\i-" IA '"'I 

..., _,..J " ...... 

Country: ~atkge Same as Submitter D Station, TX 77843-3135 

r. 

A brief descri ption ot each crash test and its result: 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-60 ( 11 OOC) 

The RTB75-350-G Redi-Torque Bolts have an 

additional hex head that twists off during 

installation at the designed torque value (60 

ft-lbs.) and are the same size, material, and 

coating as the G8FB75-350-G bolts that 

were used in the previously passed crash 

test. This change would have no affect on 

the results ofTest Number 3-60, but would 

help insure proper installation. 

Modification has no effect on crashworthiness 

3-61 (1100() 

The RTB75-350-G Redi-Torque Bolts have an 

additional hex head that twists off during 

installation at the designed torque value (60 

ft-lbs.) and are the same size, material, and 

coating as the G8FB75-350-G bolts that 

were used in the previously passed crash 

test. This change would have no affect on 

the results ofTest Number 3-61 , but would 

help insure proper installation. 

Modification has no effect on crashworthiness 
. . * Gregory Dig.tall~ signed by Greqory Ki1chge'snl!f 

S u b m1tter 51gnature : K. h DN:cn=Grl!90')'Kircl\gesner,o-XcesW>nes 

SQuared,ou-Eng1neering,

ire gesner em1d-9kirchgesner@IK-Sqrd.com. c-US 

Date·20l6.08.2312:11:31-0S'OO' 

Submit Form 

Testing Laboratory's signature concurs that these modifications are considered Non-Significant. 

Laboratory Name: Texas AM Transportation Institute 

Laboratory Signature: 

Digitally signed by Darrell L Kuhn 

})~$2. t<..4 ON: cn =Darrell L. Kuhn, o=Texas A&M Transportation lnsitute, ouo:=Proving 

Ground, email=d-kuhn@tti.tamu.edu, c=US 

Date: 2016.08.16 16:28:1 s -05'00' 

Address : Texas A&M Transportation Institute Same as Submitter D 

Country: 3135 TAMU; College Station, TX 77843-3135 Same as Submitter D 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

A2LA ISO 17025 Laboratory Certificate #2821.01 Exp: 2017-4-30 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-62 (2270P) 

The RTB75-350-G Redi-Torque Bolts have an 

additional hex head that twists off during 

installation at the designed torque value (60 

ft-lbs.) and are the same size, material, and 

coating as the G8FB75-350-G bolts that 

were used in the previously passed crash 

test. This change would have no affect on 

the results ofTest Number 3-62, but would 

help insure proper installation. 

Modification has no effect on crashworthiness 

Version 10.0 (05/16) 

Page 3 of 4 

ATTACHl\1ENTS 

Attach to this form: 

1) Additional disclosures of related financial interest as indicated above. 

2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 

support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 
Version 10.0 (05/16) 

Page 4 of 4 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words 
Date of Request: July 28, 2016 

Name: Greg Kirchgesner 

I le' New (' Resubmission

... 

Qj Company: Xcessories Squared and Allied Tube & Conduit ...

... ·e Address: P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. Harvey, IL 60426

..c 

:l Country: Ill USA 


Michael S. Griffith, Director 
 To: FHWA, Office of Safety Technologies 

Version 10.0 (05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device & Testing Criterion - Enter from right to left starting with Test Level I ' -' -' I 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'SS': Breakaway Sign 

Supports, Mailboxes, & 

other small sian sunnorts 

(' Physical Crash Testing 

le' Engineering Analysis 

MASSH-400 

AASHTO MASH TL3 

By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH. 

Individual or Organization responsible for the product: 

Contact Name: Greg Kirchgesner Same as Submitter i:gj 

Company Name: Xcessories Squared and Allied Tube & Conduit Same as Submitter i:gj 

Address: P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. 

• • --··-·· 11 r nA...._r GI Same as Submitter i:gj 

Country: USA Same as Submitter i:gj 

Enter below all disclosures of financial interests as required by the FHWA ' Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

No ongoing financial interests exist between the testing facility and the manufacturing companies. The only 

financial occurrence was the contract testing fee for the required MASH testing. 
Version 10.0 (05/16) 

Page 2 of 4 

PRODUCT DESCRIPTION 

(' New Hardware or 

Significant Modification 

(i' Modification to 

• Existing Hardware Non-Significant 

The MASSH-400 Multi-directionally Activated Sign Support Hardware system, which was jointly developed by 

Xcessories Squared and Allied Tube & Conduit, has been reviewed by a few states. We crash tested the product 

using the closest available A325 structural hex head bolt available. In order to make that work with some 

tolerance we added an additional washer to be used as a spacer for optimum thread fit. Following the 

successful crash test we worked with Nucor steel hardware division to have an A325 bolt made to the optimum 

length to eliminate the need for the additional washer. We would like to use that bolt for standard production. 

They are different only by being 5-3/4" long. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission that 

the Modification to Existing Hardware is deemed Non-significant for the device listed above to meet the MASH 

criteria. 

Engineer Name: Roger P. Bligh 

Bligh, Roger P Digitally signed by Bl igh, Roger P 

Engineer Signature: ON: postatCode=77843, o=TAMU -SIGN, street=Texas A&M Un iversity, st= TX, 

l=College Station, c=US, cn::::Bligh, Roger P, email=rbligh@tamu.edu 

Date: 2016.07.2916:33:59 -05'00' 

Address: Texas A&M Transportation Institute "') 1-'\ r-...,... A A 

Same as Submitter 0 

Country: ~allege ·5t;tion, TX 77843-3135 Same as Submitter 0 

A brief description ot each crash test and its result: 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-60 (11 OOC) 

The 5/8"-11 x 6" A325 bolts were chosen for 

the original test because the next available 

size shorter one was too short. The 6" 

length used in the original crash test 

reached the proper torque at its last thread. 

A washer was added and used as a spacer to 

provide some tolerance and that is how the 

assembly was originally crash tested. We 

had an A325 bolt designed and produced 

by Nucor Steel that is 5-3/4" in length which 

provides the optimal thread position 

without requiring the additional washer. 

The effective change is essentially a slight 

change in thread position and would have 

no affect on the results ofTest Number 3-60. 

Modification has no effect on crashworthiness 
. s· * Gregory °'91UlysigoedbyGrt'gOfy KirchqHNJ 

S u b m1tter 1gnature : K. h ON c~Klf~ o-Xces'°"es

ire gesner Sq.....-ed,ou-Engme~rong. 

em.~ qkirc~net~-sqr .com, c-US 

O..te:2016.08.2J :1 36-<l~ OO' 

Submit Form 

Version 10.0 (05/16) 

Page 3 of 4 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-61 ( 1 lOOC) 

The 5/8"-11 x 6" A325 bolts were chosen for 

the original test because the next available 

size shorter one was too short. The 6" 

length used in the original crash test 

reached the proper torque at its last thread. 

A washer was added and used as a spacer to 

provide some tolerance and that is how the 

assembly was originally crash tested. We 

had an A325 bolt designed and produced 

by Nucor Steel that is 5-3/4" in length which 

provides the optimal thread position 

without requiring the additional washer. 

The effective change is essentially a slight 

change in thread position and would have 

no affect on the results ofTest Number 3-61 . 

Modification has no effect on crashworthiness 

3-62 (2270P) 

The 5/8"-11 x 6" A325 bolts were chosen for 

the original test because the next available 

size shorter one was too short. The 6" 

length used in the original crash test 

reached the proper torque at its last thread. 

A washer was added and used as a spacer to 

provide some tolerance and that is how the 

assembly was originally crash tested. We 

had an A325 bolt designed and produced 

by Nucor Steel that is 5-3/4" in length which 

provides the optimal thread position 

without requiring the additional washer: 

The effective change is essentially a slight 

change in thread position and would have 

no affect on the results ofTest Number 3-62. 

Modification has no effect on crashworthiness 

Testing Laboratory's signature 

Laboratory Name: 

Laboratory Signature: 

concurs that these modifications are considered Non-Significant. 

Digitally signed by Darrell L Kuhn 

62. w,,. ON: cn=Darrell L. Kuhn, o=Texas A&M Transportation lnsitute, ou=Proving 

Ground, email=d-kuhn@tti.tam u.edu, c=US 

Date: 2016.08.1 6 16:30:30 ·05'00' 

Address: Texas A&M Transportation Institute Same as Submitter D 

Country: 3135 TAMU; College Station, TX 77843-3135 Same as Submitter D 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

A2LA ISO 17025 Laboratory Certificate #2821 .01 Exp: 2017-4-30 
Version 10.0 (05/16) 

Page 4 of 4 

ATTACHMENTS 

Attach to this form: 

I) Additional disclosures ofrelated financial interest as indicated above. 

2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 

support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words 
Version 10.0 (05/16) 

Page 1 of 4 

Request for Federal Aid Reimbursement Eligibility 

of Highway Safety Hardware 

... 

Q)

....

.... ·e 

.c 

::I 

II) 

Date of Request: 

Name: 

Company: 

Address: 

Country: 

To: 

July 29, 2016 I r. New { Resubmission 

Greg Kirchgesner 

Xcessories Squared and Allied Tube & Conduit 

P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. Harvey, IL 60426 

USA 

Michael S. Griffith, Director 

FHWA, Office of Safety Technologies 

I request the following devices be considered eligible for reimbursement under the Federal-aid 

highway program. 

Device &Testing Criterion - Enter from right to left starting with Test Level I ' -' -' I 

System Type Submission Type Device Name I Variant Testing Criterion Test 

Level 

'SS': Breakaway Sign 

Supports, Mailboxes, & 

other small sian sunnorts 

{ Physical Crash Testing 

(9 Engineering Analysis 

MASSH-400 

AASHTO MASH TL3 

By submitting this request for review and evaluation by the Federal Highway Administration, I certify 

that the product(s) was (were) tested in conformity with the AASHTO Manual for Assessing Safety 

Hardware and that the evaluation results meet the appropriate evaluation criteria in the MASH. 

Individual or Organization responsible for the product: 

Contact Name: Greg Kirchgesner Same as Submitter ~ 

Company Name: Xcessories Squared and Allied Tube & Conduit Same as Submitter ~ 

Address: P.O. Box 135 Auburn, IL 62615 and 16100 South Lathrop Ave. 

• • -~··-·· 11 r,...A"'\r a Same as Submitter ~ 

Country: USA Same as Submitter ~ 

Enter below all disclosures of financial interests as required by the FHWA ' Federal-Aid Reimbursement 

Eligibility Process for Safety Hardware Devices' document. 

No ongoing financial interests exist between the testing facility and the manufacturing companies. The only 

financial occurrence was the contract testing fee for the required MASH testing. 
Version 10.0 (05/16) 

Page 2 of 4 

PRODUCT DESCRIPTION 

(' New Hardware or 

Significant Modification 

(e' Modification to 

• Existing Hardware Non-Significant 

The MASSH-400 Multi-directionally Activated Sign Support Hardware system, which was jointly developed by 

Xcessories Squared and Allied Tube & Conduit, has been reviewed by a few states. During some initial 

installations it was noted that the hole placement in the slip base is similar to but not exactly like the hole 

placement of the hinge, with respect to the square sign post. We would like to move the holes in the slip base 

7/8" lower which would still have the same clamping holding strength and would have no effect on the crash 

test results. All material would be the same and all contacting surface area would be the same. 

CRASH TESTING 

By signature below, the Engineer affiliated with the testing laboratory, agrees in support of this submission that 

the Modification to Existing Hardware is deemed Non-significant for the device listed above to meet the MASH 

criteria. 

Engineer Name: Roger P. Bligh 

Bligh, Roger P Digitally signed by Bligh, Roger P 

Engineer Signature: ON :posta1Code=77843, o= TAMU-SIGN, street= Texas A&M University, st=TX, 

l=College Station, c=US, cn= Bligh, Roger P, email=rbligh@t amu.edu 

Date: 2016.08.01 08:58: 12 -05'00' 

Address : Texas A&M Transportation Institute -, 1-, r­ "T'" A 11 Same as Submitter 0 

Country: ~ .. '~ 

~allege Station, TX 77843-3135 

- Same as Submitter 0 

A briet description ot each crasn test and its result: 

Required Test 

Number 

Narrative 

Description 

Evaluation 

Results 

3-60 ( 1100() 

The angled bracket sides which make up 

the slip base post receiver and the hinge 

post sockets were originally designed to be 

the same part. A few subtle changes were 

made during the last stages of design to the 

hinge post socket angle brackets to 

establish a better welds and a better 

product. During installation of some of the 

first systems by DOTs in the field it was 

noted that it would be more efficient and 

eliminate potential mistakes ifthe hole 

placement in the slip base socket were 

adjusted to allow for the holes in the posts 

to be the same, regardless of whether that 

end was used into a hinge post socket or 

into a slip base post receiver. The holes 

would be moved lower by 7/8" and there 

would be no other changes to the part or 

assembly. The same surface area of bracket 

would still be in contact and holding onto 

the same surface area of the sign post. 

There would be no affect on the results of 

Test Number 3-60. 

Modification has no effect on crashworthiness 
Version 10.0 (05/16) 

Page 3 of 4 

Required Test Narrative Evaluation 

Number Description Results 

The angled bracket sides which make up 

the slip base post receiver and the hinge 

post sockets were originally designed to be 

the same part. A few subtle changes were 

made during the last stages of design to the 

hinge post socket angle brackets to 

establish a better welds and a better 

product. During installation of some of the 

first systems by DOTs in the field it was 

noted that it would be more efficient and 

eliminate potential mistakes ifthe hole 

3-61 (1100() placement in the slip base socket were Modification has no effect on crashworthiness 

adjusted to allow for the holes in the posts 

to be the same, regardless of whether that 

end was used into a hinge post socket or 

into a slip base post receiver. The holes 

would be moved lower by 7/8" and there 

would be no other changes to the part or 

assembly. The same surface area of bracket 

would still be in contact and holding onto 

the same surface area of the sign post. 

There would be no affect on the results of 

Test Number 3-61 . 

The angled bracket sides which make up 

the slip base post receiver and the hinge 

post sockets were originally designed to be 

the same part. A few subtle changes were 

made during the last stages of design to the 

hinge post socket angle brackets to 

establish a better welds and a better 

product. During installation of some of the 

first systems by DOTs in the field it was 

noted that it would be more efficient and 

eliminate potential mistakes ifthe hole 

3-62 (2270P) placement in the slip base socket were Modification has no effect on crashworthiness 

adjusted to allow for the holes in the posts 

to be the same, regardless of whether that 

end was used into a hinge post socket or 

into a slip base post receiver. The holes 

would be moved lower by 7 /8" and there 

would be no other changes to the part or 

assembly. The same surface area of bracket 

would still be in contact and holding onto 

the same surface area of the sign post. 

There would be no affect on the results of 

Test Number 3-62. 
. s· * Gregory Digitally signed by Grt90ry l<lfcl'lgesner 

S u b m1tter 1gnature : K' h ON:cn~r~l<irct\gesr.er,o=Xcessones

ire gesner Sqwred,ou-En9meetong.

ttr111il~glurcl'lgesrer@x-sqrd.com. c-US

~te:2016.08.2312c13:20-0S'OO' 

Submit Form 

Version 10.0 (05/16) 

Page 4 of 4 

Testing Laboratory's signature concurs that these modifications are considered Non-Significant. 

Laboratory Name: Texas AM Transportation Institute 

Laboratory Signature: 

Digitally signed by Darrell l. Kuhn 

D~ &!.. Ilk ON: cn=Darrell L Kuhn, o=Texas A&M Transportation lnsitute, ou=Proving 

Ground, emai l=d-kuhn@ni.tamu.edu, c=US 

Date: 2016.08.16 16:32:48 -05'00' 

Address : Texas A&M Transportation Institute Same as Submitter D 

Country: 3135 TAMU; College Station, TX 77843-3135 Same as Submitter D 

Accreditation Certificate 

Number and Dates of current 

Accreditation period : 

A2LA ISO 17025 Laboratory Certificate #2821.01 Exp: 2017-4-30 

ATTACHMENTS 

Attach to this form: 


I) Additional disclosures of related financial interest as indicated above. 


2) A copy of the full test report, video, and a Test Data Summary Sheet for each test conducted in 


support of this request. 

3) A drawing or drawings of the device(s) that conform to the Task Force-13 Drawing Specifications 

[Hardware Guide Drawing Standards]. For proprietary products, a single isometric line drawing is 

usually acceptable to illustrate the product, with detailed specifications, intended use, and contact 

information provided on the reverse. Additional drawings (not in TF-13 format) showing details that 

are relevant to understanding the dimensions and performance of the device should also be submitted 

to facilitate our review. 

FHWA Official Business Only: 

Eligibility Letter 

Number Date Key Words 
DWG#: 16153-B SIGN POST CONNECTION HARDWARE BOLTS DATE: 7-1-16 

SPECIFICATION: 5/8" - 11 A5TM A325 hex head bolts - hot dip galvanized. 

AS TESTED 

REQUESTING 

0 0 

H 858-11-600-G HB58-11-575-G 

0.64 I • .. 1 0.64 I• • I 

5.75 6.00 

XCESSORIES SQUARED DEVELOPMENT & MFG., INC. AUBURN, IL 62615 TEL#: (217) 438-3535 FAX#: (217) 438-3917 
DWG#: 16153-E RELOCATE SLIP BASE TO POST HARDWARE HOLE LOCATION DATE: 7-1-16 

SPECIFICATION: No material change. 

AS TESTED 

(!) REQUESTING 

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XCESSORIES SQUARED DEVELOPMENT & MFG., INC. AUBURN, IL 62615 TEL#: (217) 438-3535 FAX#: (217) 438-3917 
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