ac116

www.icc-es.org | (800) 423-6587 | (562) 699-0543 A Subsidiary of the International Code Council

®

ACCEPTANCE CRITERIA FOR NAILS AND SPIKES

AC116

Approved February 2012

(Editorially revised October 2012)

(Previously approved October 2006, February 2005, October 2004, July 2001, July 1997 and April 1997)

(Previously editorially revised July 2010)

PREFACE

Evaluation reports issued by ICC Evaluation Service, LLC (ICC-ES), are based upon performance features of the International family of codes. (Some reports may also reference older code families such as the BOCA National Codes, the Standard Codes, and the Uniform Codes.) Section 104.11 of the International Building Code

®

reads as follows:

The provisions of this code are not intended to prevent the installation of any materials or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability and safety.

This acceptance criteria has been issued to provide interested parties with guidelines for demonstrating compliance with performance features of the codes referenced in the criteria. The criteria was developed through a transparent process involving public hearings of the ICC-ES Evaluation Committee, and/or on-line postings where public comment was solicited. New acceptance criteria will only have an “approved” date, which is the date the document was approved by the Evaluation Committee. When existing acceptance criteria are revised, the Evaluation Committee will decide whether the revised document should carry only an “approved” date, or an “approved” date combined with a “compliance” date. The compliance date is the date by which relevant evaluation reports must comply with the requirements of the criteria. See the ICC-ES web site for more information on compliance dates. If this criteria is a revised edition, a solid vertical line (│) in the margin within the criteria indicates a change

from the previous edition. A deletion indicator () is provided in the margin where any significant wording has been deleted. ICC-ES may consider alternate criteria for report approval, provided the report applicant submits data demonstrating that the alternate criteria are at least equivalent to the criteria set forth in this document, and otherwise demonstrate compliance with the performance features of the codes. ICC-ES retains the right to refuse to issue or renew any evaluation report, if the applicable product, material, or method of construction is such that either unusual care with its installation or use must be exercised for satisfactory performance, or if malfunctioning is apt to cause injury or unreasonable damage.

NOTE: The Preface for ICC-ES acceptance criteria was revised in July 2011 to reflect changes in policy.

Acceptance criteria are developed for use solely by ICC-ES for purpose of issuing ICC-ES evaluation reports.

Copyright © 2012

2

ACCEPTANCE CRITERIA FOR NAILS AND SPIKES (AC116)

1.0 INTRODUCTION

1.1 Purpose: The purpose of this acceptance criteria

is to establish requirements for nails and spikes to be recognized in an ICC Evaluation Service, LLC (ICC-ES), evaluation report under the 2009 and 2006 International Building Code

® (IBC), the 2009 and 2006 International

Residential Code® (IRC) and the 1997 Uniform Building

Code™ (UBC). Bases of recognition are IBC Section 104.11, IRC Section R104.11 and UBC Section 104.2.8.

1.2 Scope: This criteria establishes minimum

requirements for nails and spikes used in connections where the main member of the connection (typically the thicker member) is wood and the side member of the connection (typically the thinner member) is wood or any engineering material. Requirements include provisions for dimensions, material properties, installation and design values. Qualification for connections with side members that are not engineering materials, as defined in Section 1.4.3, is outside the scope of this criteria. The reference values for lateral resistance and withdrawal are recognized by the codes listed in Section 1.3 of this criteria. Where this criteria references code sections of each of the various codes, the applicable section is the section of the code under which the system is being evaluated, unless noted otherwise. Standard editions of the NDS, SDPWS and ASTM D 1761 applicable to each code are summarized in Table 1.

1.3 Codes and Referenced Standards:

1.3.1 2009 and 2006 International Building Code®

(IBC), International Code Council.

1.3.2 2009 and 2006 International Residential Code™ (IRC), International Code Council.

1.3.3 1997 Uniform Building Code™ (UBC).

1.3.4 ASTM A641-09a, Standard Specification for Zinc-coated (Galvanized) Carbon Steel Wire, ASTM International.

1.3.5 ASTM D1761, Standard Test Method for Mechanical Fasteners in Wood, ASTM International.

1.3.6 ASTM D2915-10, Standard Practice for Sampling and Data-Analysis for Structural Wood and Wood-Based Products, ASTM International.

1.3.7 ASTM D5764-97a (2007), Standard Test Method for Evaluating Dowel-Bearing Strength of Wood and Wood-Based Products, ASTM International.

1.3.8 ASTM E18-08b, Standard Test Method for Rockwell Hardness of Metallic Materials, ASTM International.

1.3.9 ASTM F1575-03 (2008), Standard Test Method for Determining Bending Yield Moment of Nails, ASTM International.

1.3.10 ASTM F1667-05, Standard Specification for Driven Fasteners: Nails, Spikes, and Staples, ASTM International.

1.3.11 National Design Specification (NDS) for Wood Construction, American Forest & Paper Association. (Refer to Table 1 of this acceptance criteria for edition date.).

1.3.12 ANSI/AF&PA Special Design Provisions for Wind and Seismic (SDPWS), American Forest & Paper Association. (Refer to Table 1 of this acceptance criteria for edition date.).

1.4 Definitions:

1.4.1 Commodity Fasteners: Smooth shank, ring

shank and screw shank fasteners, and hardened fasteners of all recognized geometries that comply with the minimum dimensions and tolerances in ASTM F 1667.

1.4.2 Proprietary Fasteners: Fasteners that are

characterized by one or more of these features:

• Shank geometry not considered in ASTM F 1667;

• Bending yield strengths deviate from the values in IBC Section 2303.6 (Tables S1.1 and S1.2 of ASTM F 1667);

• Commodity fastener used in a manner not consistent with the NDS, such as fasteners installed in connection material that is not wood or a grade of structural steel.

1.4.3 Engineering Material: Material with

published, code-recognized dowel bearing strengths. Examples include sawn lumber, structural composite lumber, wood structural panels and metals.

2.0 BASIC INFORMATION:

2.1 General:

2.1.1 Description: Nail and spike description shall

be reported, including designation, wire specification, shank style or type according to ASTM F 1667, if appropriate, and dimensions such as shank diameter(s), head diameter, length of the tapered tip, and overall fastener length. For proprietary deformed shank fasteners, a description of the deformations shall be reported and include major and minor diameters, thread pitch, thread length, and number of flutes, where applicable.

2.2 Packaging and Identification: The method of

packaging and identifying the nails and spikes shall be reported and shall comply with Section 12 of ASTM F 1667. The evaluation report number shall occur on the packaging. In addition, for proprietary nails and spikes, the minimum specified bending yield strength shall be noted on the packaging.

2.3 Testing Laboratories: Testing laboratories shall

comply with Section 2.0 of the ICC-ES Acceptance Criteria for Test Reports (AC85) and Section 4.2 of the ICC-ES Rules of Procedure for Evaluation Reports.

2.4 Test Reports: Test reports shall comply with

AC85. These reports shall include sample selection procedure, test specimen preparation, test procedures, and results of all tests. Where indicated, photographs must be included in the reports.

2.5 Product Sampling:

2.5.1 Test Specimens without Third-party Quality Control Inspections: Sampling of the nails and spikes for

tests under this criteria shall comply with Section 3.2 of AC85, except as noted in Section 2.5.2.

2.5.2 Test Specimens with Third-party Quality Control Inspections: Sampling of nails and spikes having

bending yield strengths that deviate from the values in IBC Section 2303.6 (Tables S1.1 and S1.2 of ASTM F 1667)


3

for tests under this criteria shall comply with Section 3.1 of AC85.

3.0 PERFORMANCE REQUIREMENTS

3.1 Scope: All fasteners and single-fastener

connections shall be tested in accordance with Sections 3.2 through 3.10 of this criteria, as applicable. Lateral design and withdrawal design values for proprietary fasteners shall be determined in accordance with Section 4.3 and Section 4.4, respectively, of this criteria. Lateral design and withdrawal design values for commodity fasteners shall be determined in accordance with Section 4.5 of this criteria.

3.1.1 Dowel Bearing Test: Dowel bearing strength

testing described in Section 3.8 shall be determined for the wood or connection member when:

• Lateral resistance testing is required by Section 3.1.2.

• Wire diameter is less than 0.099 inch (2.5 mm).

• The connection material is not a wood-based material recognized in the NDS or a grade of structural steel.

3.1.2 Lateral Resistance Test:

3.1.2.1 Section 3.9, Lateral Resistance Test, shall be required for nails and spikes when:

• Penetration into the main member is less than 6D.

• Diameter is less than 0.099 inch (2.5 mm).

• The nail or spike is a proprietary fastener.

3.1.2.2 When lateral resistance testing is conducted as required by Section 3.1.2.1, the reference lateral design values shall be determined by the calculation method according to Section 4.3.1 or by the empirical method according to Section 4.3.2. If the lateral resistance test data corroborate yield modes other than those recognized by the yield mode equations of the NDS, the reference lateral design values shall be determined by the empirical method according to Section 4.3.2.

3.1.3 Withdrawal Test: Section 3.10, Withdrawal

Test, shall be required for proprietary fasteners other than smooth shank fasteners, and ring- and screw-shank fasteners, and hardened fasteners with ring- and screw-shank geometries.

3.2 Zinc-coated Steel Wire: Zinc-coated steel wire

shall be tested and found to comply with ASTM A 641, Class 1, coating weight. The test sample shall consist of at least 12 inches (305 mm) of shank length, but 24 inches (610 mm) of shank length is preferred.

3.3 Hardened Steel Wire or Nails: Hardened steel

wire or nails shall be heat-treated and, when required, found to comply with Section 3.5 of these criteria. In addition, the Rockwell Hardness of C 37 must be achieved in accordance with ASTM E 18, based on a sample of at least seven specimens, unless otherwise specified in the standard.

3.4 Stainless Steel Wire and Nails: Stainless steel

wire or nails shall comply with Section 6.2 of ASTM F 1667.

3.5 Ductility: Stainless steel nails, proprietary, and

hardened steel nails shall be tested and shall comply with

the requirements for ductility in Section 7.1 of ASTM F 1667, based on a minimum of seven specimens.

3.6 Coatings: Coatings other than zinc shall be

described.

3.7 Bending Yield Strength: Bending yield strength, Fyb, of nails and spikes shall be evaluated according to ASTM F 1575. Testing for smooth shank nails shall be done on either the finished nail or specimens of drawn wire stock. Tests for deformed shank nails shall be done on the nail products. Test specimens shall be randomly selected to represent the parent population of fasteners in accordance with the objectives of the test program. At least 15 replicates shall be tested.

Test reports shall include:

• Calculation of Fyb for each nail according to the

Annex of ASTM F 1575.

• Average calculated bending yield strength.

• Other requirements as described in Section 11 of ASTM F 1575.

3.8 Dowel Bearing Strength: Dowel bearing strength

of wood-based materials shall be determined in accordance with ASTM D 5764, on a minimum of 15 specimens per wire diameter. Dowel bearing strength shall be determined for each species of lumber for which recognition is desired; as an alternative, species may be grouped, with tests conducted on the species with the least specific gravity in each group. For nonwood engineering materials, dowel bearing capacity shall be determined by an approved method.

3.9 Lateral Resistance Test: For connections

between wood members and connections between wood-based materials and other engineering materials, lateral resistance tests shall be conducted in accordance with ASTM D 1761 procedures. The lateral resistance tests shall be conducted on a minimum of 15 specimens of each species and material for which recognition is desired, or, as an alternative, species may be grouped, with tests conducted on the species with the least specific gravity in each group. Fasteners shall be driven into wood conditioned in accordance with Section 9.1 of ASTM D 1761 or with the planned end use. The average Fyb of the

fasteners as determined in accordance with Section 3.7 shall be within 10 percent of the specified Fyb. The ultimate load and 75 percent of the proportional limit load shall be determined for each test connection. For proprietary fasteners that have reference lateral design capacities calculated by using Section 4.3.2 of this criteria, testing for representative material combinations shall use a minimum of 15 specimens and target 5 percent precision with a 75 percent confidence for the mean capacity, but testing more than 40 specimens shall not be required. The target number of test specimens is determined by using ASTM D 2915, equation 1.

3.10 Withdrawal Test: Withdrawal tests shall be

conducted in accordance with ASTM D 1761 procedures, on a minimum of 15 specimens of each species and material for which recognition is desired. Fasteners shall be driven into wood conditioned in accordance with Section 9.1 of ASTM D 1761. The ultimate load shall be determined for the test fastener. For proprietary fasteners that have reference withdrawal capacities calculated by using Section 4.4 of this criteria, testing shall use a


4

minimum of 15 specimens for representative species (or species group) and materials and target 5 percent precision with a 75 percent confidence for the mean capacity, but testing more than 40 specimens shall not be required. The target number of test specimens is determined by using ASTM D 2915, equation 1.

4.0 ANALYSIS

4.1 Bending Yield Strength: Compliance with IBC

Section 2303.6 (Tables S1.1 and S1.2 of ASTM F 1667) shall permit the use of the nail and spike connection tables in the NDS or UBC Section 2318.3; and the yield mode equations of the NDS shall be used regardless of the Fyb

compliance.

4.2 Dowel Bearing: For wood-based materials, the

mean dowel bearing test data shall be compared to the published dowel bearing capacities in the NDS, and if found to be not significantly different (significance level = 0.10), the NDS published values shall be used in Section 4.3. For other engineering materials, the mean dowel bearing strength and standard deviation shall be reported and used as appropriate in Section 4.3.

4.3 Reference Lateral Design Values for Proprietary Fastener Connections: Lateral design

values of proprietary fasteners (normal load duration) used in wood-to-wood or wood-to-other-engineered-material connections shall be determined by calculation in accordance with Section 4.3.1 or by the empirical method in accordance with Section 4.3.2.

4.3.1 Lateral Resistance Value–Calculation: The

lateral design reference values shall be calculated in accordance with the NDS and shall not exceed 75 percent of the proportional limit load, or the average ultimate load divided by a factor of 3.2. The factor of 3.2 assumes a duration of load of 1.6 and a maximum coefficient of variation (COV) of 15 percent. Where the COV is greater than 15 percent, the calculated reference lateral load shall not exceed:

(

)

where:

Fall = Bound of calculated reference lateral load, pounds (N).

COV = s/F = Coefficient of variation in a test series.

s = Standard deviation in a test series, pounds (N).

F = Average ultimate load in test series, pounds (N).

Where tests are done on species groups, reference design values for each group shall be determined based on applicable data for the tested species.

4.3.2 Lateral Resistance Value–Empirical: The

reference lateral design value may exceed the value calculated in accordance with Section 4.3.1, provided the empirically derived value is taken as the average ultimate load divided by a factor of 5.

4.4 Reference Withdrawal Design Values for Proprietary Fasteners: The reference withdrawal design

value (normal duration of load) shall be determined based on the average ultimate load test results described in

Section 3.10 of these criteria, divided by a factor of 5. Reference withdrawal design values for fasteners with smooth round shanks and having diameters equal to commodity fasteners shall be limited to values listed in the NDS and UBC Table 23-III-D. Where tests are done on species groups, reference design values for each group are determined based on applicable data for the tested species.

4.5 Reference Lateral Design and Withdrawal Values for Commodity Fastener Connections: These

fasteners may reference the tabulated values and appropriate tables noted in the code. Reference lateral design values (normal duration of load) of connections with smooth, ring, and screw shank fasteners, and hardened fasteners of all recognized shank geometries may be calculated using the the NDS. Reference withdrawal design value of fasteners may be calculated using:

W = 1380 G5/2

D

For SI: W = 243.4 G5/2

D

where:

W = Nail or spike withdrawal design value, pounds

per inch (N/mm) of penetration in the member holding point.

G = Assigned specific gravity of the wood based on oven dry weight and volume, according to NDS Table 11.3.2A.

D = Shank diameter of the nail or spike, where 0.099 ≤ D ≤ 0.375 inch (2.51 ≤ D ≤ 9.53 mm) for smooth shank wire nails and wire spikes; and where 0.120 ≤ D ≤ 0.207 inch (3.05 ≤ D ≤ 5.26 mm) for threaded nails; inches (mm).

4.6 Placement of Nails and Spikes: Placement of

nails and spikes shall conform to the NDS and UBC Section 2318.3, as applicable.

5.0 FASTENER SUBSTITUTION IN HORIZONTAL DIAPHRAGM AND VERTICAL SHEAR WALLS:

5.1 Scope: This section addresses additional

requirements for the acceptance of alternates to code-prescribed fasteners for use in the horizontal diaphragm and vertical shear wall conditions described in Sections 4.2 and 4.3 of the SDPWS, or Chapter 23 of the IBC or UBC, as direct, one-to-one substitutes for said fasteners. The horizontal diaphragms and vertical shear walls with the alternate fastener will be assigned the allowable shear value set forth in the SDPWS, IBC or UBC tables for the referenced code-prescribed fastener. The test results shall show that ultimate load for the alternate fastener connection equals or exceeds the load of the referenced code-prescribed fastener connection, that the slip for the alternate fastener connection is less than or equal to the slip for the code-prescribed fastener connection, and that the alternate fastener can be installed in accordance with the IBC or UBC without damaging the connected materials. For vertical shear walls, the alternate fastener shall comply with the requirements for ductility in Section 7.1 of ASTM F 1667 for the code specified fastener.

5.1.1 Recognition for Reduced Penetration Depths: If recognition is sought for the use of alternate

nails with reduced nail penetration (i.e., penetration depths


5

less than the minimums specified in the diaphragm and shear wall tables of the applicable code) in diaphragms or shear walls, full-scale horizontal diaphragm and/or vertical shear wall testing is required at the minimum nail penetration depth for which recognition is sought. A qualification test plan shall be submitted to ICC-ES prior to commencement of testing.

5.2 Comparative Connection Testing:

5.2.1 Testing Requirements: Lateral load tests

shall be performed both on connections constructed using the code-prescribed fasteners, and on connections constructed using the nails to be recognized as alternates to the code-prescribed fasteners. Lateral load tests shall be conducted in accordance with ASTM D 1761 and Sections 5.2.1.1 through 5.2.1.4.

5.2.1.1 Wood Material: The comparative tests

shall be conducted using nominal 2x sawn lumber compliant with IBC Section 2303.1.1, and wood structural panels compliant with IBC Section 2303.1.4. Comparative tests shall be performed on each combination of lumber species and wood structural panel type for which recognition is sought, with the exception that recognition can be applied to both rated sheathing and Structural I panels if rated sheathing panels are used in the tests in lieu of Structural I grade panels. Analogously, if recognition is sought for use with framing of various species groups having a range of assigned specific gravities, tests need only be performed using lumber having the minimum and maximum specific gravities for which recognition is sought. The lumber framing and wood structural panels shall be conditioned in accordance with Section 9 of ASTM D 1761 prior to assembling the test specimens. The moisture content of the framing and wood structural panel members shall be determined in accordance with ASTM D 4442 or ASTM D4444. The specific gravity of the framing and wood structural panel members shall be determined in accordance with ASTM D 2395.

5.2.1.2 Nails: The code-prescribed nails shall be

smooth-shank, bright common nails of the penny-weight to which the desired equivalency is to be established. The proprietary fasteners shall be tested in the condition intended for end-use in accordance with the manufacturer’s instructions. Manufacturer-applied coatings need not be removed, with the exception that coatings which enhance withdrawal resistance through adhesive bonding between the fastener and the wood shall be removed prior to specimen construction.

5.2.1.3 Test Specimen Construction: The test

specimens with the code-prescribed common nails shall be constructed from the same wood structural panels and wood framing members as the alternate nail specimens. The test specimen shall be constructed for single shear loading, such that the load is applied parallel to the face grain of the plywood (or parallel to the face strands of the OSB) and parallel to the grain of the supporting lumber. The fasteners shall be driven flush to the face of the sheathing material and into the narrow face of the wood framing member.

5.2.1.4 Number of Test Specimens: The

required number of replicate specimens for each configuration shall be the number needed to provide 5 percent precision with 75 percent confidence for the mean capacity, but no less than 15.

5.2.2 Analysis and Conditions of Acceptance:

5.2.2.1 Load Capacity: The average ultimate

load for the alternate fastener shall be equal to or greater than the ultimate load for the code-prescribed fastener.

5.2.2.2 Nail Slip: Load-slip curves shall be

generated from the load and lateral movement measurements in the lateral load test report. The average load-slip curve for the alternate fastener shall be compared to that of the code-prescribed nail at all possible values of the fastener load level Vn, which is calculated as follows:

( )(

)

where:

vs = Seismic nominal unit shear capacity of the diaphragm or shear wall, as specified in the applicable tables of SDPWS, pounds per foot.

s = Boundary spacing of sheathing fasteners within the diaphragm or shear wall, inches.

Vn shall be evaluated using each combination of vs and s for which equivalency recognition is sought. The average slip of the alternate fastener shall be less than or equal to that of the code-prescribed nail at the load levels corresponding to each possible value of Vn.

5.2.2.3 Slip Function: For use in determining

diaphragm and shear wall deflections, a function for nail slip, en, with respect to load shall be derived for alternate fasteners to be used for attaching sheathing in horizontal diaphragms and vertical shear walls. The equation shall be compatible with those given in Table C4.2.2D of the SDPWS Commentary, having the following form:

( )

where:

Vn = Lateral force on the nail, pounds (N).

a = The first constant.

b = The second constant

The constants, a and b, shall be determined by performing a regression analysis on the average load-slip curve for each nail type and connection configuration tested.

5.3 Minimum Spacing and Edge Distance Test:

This test shall demonstrate that the alternate fastener can be installed using the minimum fastener spacing and edge distances specified for the applicable horizontal diaphragm and vertical shear wall configurations described in Chapter 23 of the IBC or UBC, without any unusual splitting within the sheathing or framing. The test shall be conducted on a minimum of two specimens that consist of 2-by-4 Douglas fir-larch framing, and sheathing material of the type and thickness for which recognition is desired. Nails shall be driven flush to the face of the sheathing material, and into the wood framing member at the minimum spacing and edge distances specified in the code tables. The nails shall be installed perpendicular to the grain of the sheathing material and wood framing member. A visual


6

inspection of the connection shall be made after the nails are driven into the material. The test shall not reveal any sign of unusual splitting of the sheathing material or framing.

6.0 QUALITY CONTROL

6.1 General: For nails and spikes recognized as

having higher bending yield strengths than those assigned in IBC Section 2303.6 (Tables S1.1 and S1.2 of ASTM F 1667), quality documentation and inspections shall be in accordance with Section 6.2. For all other nails and spikes, quality documentation and inspections shall be in accordance with Section 6.3. See Annex A for alternate procedures for qualification and quality control of nails that are produced by manufacturers other than the report holder or a listee on the evaluation report.

6.2 Nails and Spikes Recognized for Higher Bending Yield Strengths:

6.2.1 Quality documentation complying with the ICC-ES Acceptance Criteria for Quality Documentation (AC10) shall be submitted for each facility manufacturing or labeling products that are recognized in the ICC-ES evaluation report.

6.2.2 A qualifying inspection shall be conducted at each manufacturing facility when required by the ICC-ES Acceptance Criteria for Inspections and Inspection Agencies (AC304).

6.2.3 Third party follow-up inspections are required under this acceptance criteria for nails and spikes recognized as having higher bending yield strengths than those assigned in IBC Section 2303.6 (Tables S1.1 and S1.2 of ASTM F 1667).

6.3 Nails and Spikes Having Standard Bending Yield Strengths:

6.3.1 Quality documentation complying with the ICC-ES Acceptance Criteria for Quality Documentation (AC10) shall be submitted for each facility manufacturing or labeling products that are recognized in the ICC-ES evaluation report.

6.3.2 A qualifying inspection shall be conducted at each manufacturing facility in accordance with the requirements of the ICC-ES Acceptance Criteria for Inspections and Inspection Agencies (AC304).

6.3.3 An annual inspection shall be conducted at each manufacturing facility in accordance with AC304.

7.0 EVALUATION REPORT RECOGNITION

The evaluation report shall include the following:

1. Basic information required by Section 2.1, including product description, packaging and identification.

2. Allowable design values based on Section 4.0 of this criteria.

3. Placement methods, based on Section 4.6 of this criteria.

4. Information concerning fastener substitution in horizontal diaphragms and vertical shear walls, based on Section 5.0 of this criteria, as applicable. This information should include the nail slip function, en, along with a statement indicating that this function is to be used in lieu of the fastener slip functions given in SDPWS Table C4.2.2D when calculating diaphragm or shear wall deflection per SDPWS Sections C4.2.2 or C4.3.2, respectively. Exception: The nail slip function, en, is not

required to be included within the evaluation report if it can be established that the function is sufficiently similar to that of the code-prescribed nail.


7

TABLE 1 - REFERENCED STANDARDS

STANDARD 1997 UBC 2006 IBC 2006 IRC 2009 IBC 2009 IRC

NDS ANSI/NFoPA

NDS-1991

(Part 12)

ANSI/AF&PA NDS–2005

(Part 11)


(Part 11)


(Part 11)


(Part 11)

SDPWS — SDPWS-05 SDPWS-05 SDPWS-08 SDPWS-08

ASTM D 1761 1988 1988 (2000)ε1 1988 (2000)ε

1 2006 —


8

ANNEX A Qualification and Quality Control Procedures for Purchased Fasteners

A1.0 General:

A1.1 Purpose: The purpose of this annex is to set forth alternate procedures for qualification of nails as complying with the

provisions of AC116, and establishment of quality control for such nails, for nails that are produced by manufacturers other than the report holder.

A1.2 Scope: This annex applies to report holders who purchase nails from sources who have not submitted quality control documentation to ICC-ES, and whose manufacturing facilities have not been audited by ICC-ES.

A1.3 Referenced Standards:

A1.3.1 ASTM F 1470-02, Standard Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection, ASTM International.

A1.3.2 MIL-STD-1916, April 1, 1996, DOD Preferred Methods for Acceptance of Product, Department of Defense.

A1.4 Definitions:

A1.4.1 Report Holder: For the purposes of this annex, the term “report holder” shall refer to evaluation report holders or listees on evaluation reports who are recognized in the evaluation report to purchase fasteners.

A2.0 Qualification Process:

A2.1 General: The qualification process consists of four stages. At each stage, the quantity of fasteners ordered

increases, until consistent conformance to the requirements of ASTM F1667, and comparable engineering drawings issued by the report holder, is assured. Characteristics subject to inspection and testing include bending yield strength for nails, ductility for stainless steel staples and nails, hardness and ductility for hardened nails, galvanized coating weight (where applicable), and physical dimensions for all fasteners as required by AC116. Sampling and evaluation shall be consistent with Table III, “Variables sampling plans,” verification level V of MIL-STD-1916. In this case, the sample size is 64 pieces.

At every step of the qualification process, or at any point in the auditing process, any product that is found to be nonconforming shall be scrapped, returned, or otherwise controlled so that it is not identified as covered by the evaluation report.

A2.2 Stage 1: The first step of the process is to obtain carton size quantities of each nail diameter, material type and

configuration (smooth, ring, screw, hardened, stainless, etc.), to be qualified. Sixty-four fasteners shall be selected from the carton and all test samples are to come from this selection. Testing shall be conducted in accordance with the requirements of AC116. Tests may be performed by the report holder and do not have to be performed by an accredited laboratory. Depending on the number of tests to be performed (stiffness, ductility, etc.) and the number of fasteners to be tested in each test (sample size of 7, 15, etc.) not all 64 fasteners may be used in a test. Each individual sample is to be tested as outlined in Section A2.1 for characteristics subject to inspection and testing. If compliance to all aspects is achieved, proceed to Section A2.3. If any nonconformances are found, the supplier shall be notified, and the process restarted, with new products submitted for testing. Upon the conclusion of testing, the fasteners in the sample shall be scrapped.

A2.3 Stage 2: The second stage of the process is to apply the quantity of fasteners to skid quantities of each type to be

qualified. Testing shall be performed by an accredited laboratory. If fasteners pass all tests, the report holder shall provide a copy of the test report(s) to ICC-ES. The new samples shall be manufactured from a different heat of rod than was used in the sample under Stage 1. The samples shall be tested as described in Stage 1, with the exception that the 64 fasteners will be sampled from a number of cartons as specified by ASTM F 1470. The number of cartons from which the 64 fasteners are selected for each fastener type is the “sample size” indicated in ASTM F 1470, Table 3, for Sample Level A, for a “lot size” equal to the number of cartons in the skid that contain the type of fastener being tested. Even though ASTM F 1470 specifies Sampling Level B or C for some fastener characteristics in its Table 1, all fastener tests are performed on fasteners from the group of 64 selected from the number of boxes specified in ASTM F 1470, Table 3, for Sample Level A. If the samples all exhibit conformance to the requirements of ASTM F 1667 and AC116, proceed to Section A2.4. If nonconformances related to ICC-ES requirements such as nail bending yield strength, staple moment, hardness, ductility, etc., are found, the process must restart at Section A2.2, or be abandoned. Upon the conclusion of testing, the fasteners in the sample shall be scrapped.

A2.4 Stage 3: The third stage of the process is to move to container quantities. At the container level, the fasteners will

generally be mixed by type within the container. The number of cartons from which the 64 fasteners are selected for each fastener type is the “sample size” indicated in ASTM F 1470, Table 3, for Sample Level A, for a “lot size” equal to the number of cartons in the skid that contain the type of fastener being tested. Tests may be performed by the report holder and do not have to be performed by an accredited laboratory. Inspection and testing shall be as outlined in Section A2.2, above. If the fasteners demonstrate conformance, move to normal purchase practice, Section A2.5. In the case of major nonconformances related to ICC-ES requirements such as nail bending yield strength, staple moment, hardness, ductility, etc., the process shall restart at Section A2.2, or be abandoned.

A2.5 Stage 4: The next six shipments of fasteners require testing, but at a reduced level. A “shipment” consists of product

received from one order. For sampling purposes, each intermodal container or truckload is considered a separate shipment. If a shipment contains different fastener types, each fastener type shall be tested. For fastener bending yield strength testing, a


9

“type” consists of one combination of shank diameter and shake style (i.e., smooth, screw or ring) regardless of nail length. Test and inspect as described in Section A2.2, above, determining the number of cartons from which the 64 fasteners are to be selected using ASTM F1470 as described in Section A2.3, above. If nonconformances related to ICC-ES requirements such as nail bending yield strength, hardness, ductility, etc., are found, the process shall restart at Section A2.2, or be abandoned. If the fasteners are conforming, the supplier shall be considered to be qualified.

Supplier qualification shall continue with testing of each fastener type in each future shipment. However, after ten consecutive shipments have been tested with all fasteners conforming to all requirements, the Sample Level used in application of ASTM F1470 will change from Sample Level A to Sample Level B. This will always result in the 64 fasteners being selected from a smaller number of fastener cartons.

After five additional consecutive shipments have been tested with all fasteners conforming to all requirements, the Sample Level used in application of ASTM F1470 will change from Sample Level B to Sample Level C. This will usually result in the 64 fasteners being selected from a smaller number of fastener cartons.

After Sample Level has been switched from A to B or C, if any tested fastener types fail any test, the Sample Level will revert to A as at the beginning of Section A2.4.

A3.0 Quality System:

The report holder shall provide a quality control manual complying with the ICC-ES Acceptance Criteria for Quality Documentation. The documentation shall document procedures complying with this annex. The report holder’s testing facility shall demonstrate that equipment, procedures and personnel are adequate to conduct the necessary testing.

ac116

Documents