1、Designation: C1513 12aC1513 13Standard Specification forSteel Tapping Screws for Cold-Formed Steel FramingConnections1This standard is issued under the fixed designation C1513; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the ye
2、ar of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope*1.1 This specification covers steel self-drilling and self-piercing tapping screws for the connection of cold-forme
3、d steelmembers manufactured in accordance with Specifications C645 and C955. This specification also covers test methods fordetermining performance requirements and physical properties.1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathe
4、maticalconversions to SI units that are provided for information only and are not considered standard.1.3 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does notpurport to address all of the safety concerns, if any, associated wit
5、h its use. It is the responsibility of the user of this standard toestablish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2A370 Test Methods and Definitions for Mechanical Testing of Steel Pr
6、oductsA510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon SteelB117 Practice for Operating Salt Spray (Fog) ApparatusC11 Terminology Relating to Gypsum and Related Building Materials and SystemsC645 Specification for Nonstructural Steel Framing MembersC955 Specifi
7、cation for Load-Bearing (Transverse and Axial) Steel Studs, Runners (Tracks), and Bracing or Bridging for ScrewApplication of Gypsum Panel Products and Metal Plaster BasesF1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance InspectionF1941 Specification for Electr
8、odeposited Coatings on Threaded Fasteners (Unified Inch Screw Threads (UN/UNR)2.2 ANSI/ASME Documents:ANSI/ASME B18.6.4 Standard Specification for Thread Forming and Thread-Cutting Screws3ANSI/ASME B18.18 Quality Assurance for Fasteners332.3 SAE Standards:SAE J78 Steel Self-Drilling Tapping Screws4S
9、AE J933 Mechanical and Quality Requirements for Tapping Screws43. Terminology3.1 DefinitionsFor definitions relating to gypsum and related building materials and systems, use Terminology C11.3.2 Definitions of Terms Specific to This Standard:1 This specification is under the jurisdiction of ASTM Com
10、mittee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility ofSubcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products.Current edition approved Dec. 1, 2012March 1, 2013. Published January 2013April 2013. Originally approved in
11、2001. Last previous edition approved in 2012 asC151312.12a. DOI: 10.1520/C1513-12A.10.1520/C1513-13.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Doc
12、ument Summary page on the ASTM website.3 Available from American Society of Mechanical Engineers (ASME), ASME International Headquarters, Three Park Ave., New York, NY 10016-5990, http:/www.asme.org.4 Available from Society of Automotive Engineers (SAE), 400 Commonwealth Dr., Warrendale, PA 15096-00
13、01, http:/www.sae.org.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becauseit may not be technically possible to adequately depict all changes accurately, ASTM recommends that u
14、sers consult prior editions as appropriate. In all cases only the current versionof the standard as published by ASTM is to be considered the official document.*A Summary of Changes section appears at the end of this standardCopyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Cons
15、hohocken, PA 19428-2959. United States13.2.1 bearing surface (of the screw), nthe supporting or locating surface of a fastener with respect to the part which it fastens(mates). The loading of the fastener is usually through the bearing surface, (that is, the bearing surface of the hex washer head st
16、yleis under the head, the part that touches the top material being fastened).3.2.2 case depth (of the screw), nthe thickness of the hardened surface of the screw.3.2.3 countersunk head style (for a screw), nall screw head designs that sink into the top material being fastened and that havethe bearin
17、g surface (see 3.2.1), at the top of the head (that is, flat and bugle).3.2.4 crest (of the screw thread), nthe highest point of the screw thread.3.2.5 drill capacity (of the self-drilling screw), nthe total thickness of material the fastener is designed to drill through,including any space between
18、the layers.3.2.6 head styles (of the screw), nrefer to Fig. 1 drawings.3.2.6.1 bugle head, nbugle shape countersinking head typically used for fastening gypsum panel products to wood and steel.3.2.6.2 hex washer head, nhas an indented top surface and six flat sides formed integrally with a flat wash
19、er which projectsbeyond the sides and provides a flat bearing surface.3.2.6.3 lath head, nsee modified truss.3.2.6.4 modified truss, nlow profile round washer head.3.2.6.5 pan framing head, nflat top surface rounding into cylindrical sides and a flat bearing surface.3.2.6.6 pan head, na slightly rou
20、nded top surface rounding into cylindrical sides and a flat bearing surface.3.2.6.7 pancake head, nlower profile head style than the hex washer and pan head with a larger flat bearing surface.3.2.6.8 wafer head, na countersinking head style with a large lip at the top of the countersinking contour t
21、hat will “flush” withthe substrate creating a greater bearing surface, therefore a greater pull-over/pull-through value.3.2.7 point style, nof the self-drilling tapping screw is designated by a number (that is, 1, 2, 3, 4, or 5). The higher the number,the higher the drill capacity (see 3.2.5) of the
22、 screw.3.2.8 root (of the screw thread), nthe lowest point of the screw thread.3.2.9 self-drilling tapping screw, nexternally threaded fasteners with the ability to drill their own hole and form or cut theirown internal mating threads without breaking.3.2.10 self-piercing tapping screw, nexternally
23、threaded fasteners with the ability to pierce metallic material 33 mils (0.84mm), or less, form a sleeve by extruding metallic material and “tap” their own mating threads when driven. Self-piercing screwshave a sharp point with the point angle not more than 30 degrees.3.2.11 spin-out (for a screw),
24、nfor a screw, the continued rotation of a screw without further penetration into the substrate.3.2.12 tapping screw, nexternally threaded fasteners with the ability to “tap” their own internal mating threads when installed.4. Classification4.1 Steel tapping screws covered by this specification are t
25、wo types:4.1.1 Self-drilling.4.1.2 Self-piercing.5. Materials5.1 Steel wire, Specification A510minimum grade 1018.6. Physical Properties6.1 Dimensions:6.1.1 Self-drilling tapping screws shall be in accordance with SAE J78.J78 based upon nominal size or basic diameter. Threadsper inch (TPI) shall be
26、as shown in Table 1.6.1.2 Self-piercing tapping screws shall be in accordance with head dimensions as shown in ANSI/ASME B18.6.4.FIG. 1 Head StylesC1513 1326.2 Total Case DepthScrews shall have a total case depth conforming to the tabulation in Table 12.6.2.1 Case depth shall be measured at the mid-
27、point between crest and root on the thread shank.7. Packaging and Head Marking7.1 Screws shall be marked with manufacturers/suppliers head marking for traceability.7.2 Screws shall be packaged in substantial commercial shipping containers, constructed so as to preserve the contents in goodcondition
28、and to ensure acceptance and safe delivery by common or other carriers.7.2.1 Individual packages shall be so constructed that the contents shall be able to be partially removed without destroying thecontainers ability to serve as a receptacle for the remainder of the contents.7.2.2 Individual packag
29、es and shipping containers shall be marked with the type, size, use, and quantity of the screws containedtherein, the name brand headmarking example and trademark of the producer or supplier, the ASTM designation, and any or allappropriate evaluation reports . Boxes shall be marked with the drill ca
30、pacity of the self-drilling tapping screws.8. Performance Requirements8.1 Hardness:8.1.1 The self-drilling tapping screws shall have a surface hardness of not less than Rockwell C50 and core hardness of not lessthan Rockwell C32 as tested in accordance with SAE J78.8.1.2 The self-piercing screws sha
31、ll have a surface hardness of not less than Rockwell C45 and core hardness of not less thanRockwell C28 as tested in accordance with SAE J933.8.2 Ductility:8.2.1 The self-drilling tapping screws shall have sufficient ductility to be able to withstand a 5 bend without visible signs offracture as test
32、ed in accordance with SAE J78.8.2.2 The self-piercing tapping screws shall have sufficient ductility to be able to withstand a 10 bend without visible signs offracture as tested in accordance with ANSI/ASME B18.6.4.8.3 Torsional Strength:8.3.1 Self-drilling tapping screws shall not fail the applicat
33、ion of torque less than or equal to the torsional strength specified inTable 23, when tested in accordance with SAE J78.8.3.2 Self-piercing tapping screws shall not fail with the application of torque less than the torsional strength specified in Table34, as tested in accordance with ANSI/ASME B18.6
34、.4, Section 2.9.1.2, for tapping screws.8.4 Drill Drive Performance Requirement:8.4.1 Self-drilling tapping screws shall not fail the drill-drive test requirements as noted in SAE J78 and shown in Table 45.8.4.2 Self-drilling tapping screws shall be tested in accordance with SAE J78 as shown in Fig.
35、 2.8.5 Self-Drilling Tapping Screw Drill Capacity:8.5.1 Screws shall be able to self-drill and thread into cold-formed steel thicknesses without breaking or stripping as specifiedby each specific manufacturers published recommendations. Manufacturers shall provide a min-max recommendation with thedr
36、ill capacity of each self-drilling point style screw.9. Finish and Appearance9.1 The threads shall be clean, smooth, and neatly formed.9.2 Each fastener shall have manufacturers/suppliers head marking for traceability.TABLE 1 Threads Per Inch (TPI)NominalScrew SizeThreads PerInch, maxThreads PerInch
37、, min6 20 108 20 1210 24 1212 24 1414 in. 28 14TABLE 12 Total Case DepthNominal ScrewSizeTotal Case Depth,Maximum, in. (mm)Total Case Depth,Minimum, in. (mm)8 through 12 0.009 (.2286 mm) 0.004 (.1016 mm)14 in. 0.011 (.2794 mm) 0.005 (.1270 mm)C1513 1339.3 Screws shall have a corrosion-resistant trea
38、tment. The finish shall not inhibit adhesion to finishing materials nor bleedthrough field-applied decoration. The screws shall meet a minimum requirement as listed in Specification F1941 as tested inaccordance with Practice B117.10. Sampling10.1 . Sampling for all tests, except those in Section 13,
39、 shall be in accordance with Practice F1470.11. Test Methods11.1 Screws shall be tested per SAE J78 Table number 4, Section 8.4, to determine the ability of the screws to self-drill throughcold-formed steel without spinout, thread deformation, or breaking.11.2 Significance and Use:11.2.1 The test me
40、thods provide procedures for evaluating the physical properties and performance requirements of steel drillscrews.12. Test Materials12.1 Materials:TABLE 23 Torsional StrengthSelf-Drilling Tapping ScrewsNominal ScrewSizeMinimum lb-in.Type BSDAMinimum lb-in.Type CSDB6 24 248 42 4810 61 6512 92 10014 i
41、n. 150 156A Type BSDspaced threads referred to as coarse thread.B Type CSDmachine screw threads referred to as fine thread.TABLE 34 Torsional StrengthSelf-Piercing Tapping ScrewsNominal Screw Size Minimum lb-in.6 247 308 3910 56TABLE 45 Drill-Drive Test RequirementsNominalScrewSizeTestPlateThickness
42、,Ain.,MaxTestPlateThickness,Ain., MinAxialLoading,Blb, A, maxAxialLoading,Blb, B, MaxAxialLoading,Blb, C, MaxTime toDrilland FormThread,Cs, Max4 0.068 0.062 25 30 40 2.06 0.068 0.062 30 35 45 2.58 0.068 0.062 30 35 45 3.010 0.068 0.062 35 40 50 3.512 0.068 0.062 45 50 60 4.014 0.068 0.062 45 50 60 5
43、.0A Test plates shall be low carbon, cold rolled steel having a hardness of RockwellB60-85.B Axial loads are varied to offset the detrimental effects on drilling capabilitycreated by finishes applied to screws in accordance with the following:Column AAxial loads tabulated shall apply to plain, oiled
44、, and commercialphosphate coating and cadmium and zinc platings up to 0.0003 in. in thickness.Column BAxial loads tabulated shall apply to special electroplated finishesexceeding 0.0003 in. in thickness and to special coatings, such as thread sealinghot melts, and so forth.Column CAxial loads tabula
45、ted shall apply to chromium finish.C Tool speed shall be 2500 rpm for screw sizes No. 4 through No. 10. Tool speedof 1800 rpm is recommended for screw sizes No. 12 and 14 ; however, 2500 rpmmay be used provided care is exercised to minimize influence of high heat buildupdue to surface speed.C1513 13
46、412.1.1 Screw fasteners used in the tests shall be of standard manufacturer and representative of the product for whichrecognition is sought. Where tested fasteners are prototype, the fasteners shall be representative of later production. Fasteners shallmeet the minimum and quality requirements for
47、tapping screws in accordance with ANSI/ASME B18.6.4, ANSI/ASME B18.18,and Practice F1470, or the pertinent standard, whichever is more restrictive. Compliance is determined by test reports submittedby a qualified testing laboratory.12.1.2 Sheet SteelSteel description, including material specificatio
48、n, yield strength, and minimum uncoated steel thicknessnoted.12.2 Sharp point screws shall be tested using 33 mil (0.84 mm) steel.12.3 Drill point screws shall be tested using 54 mil (1.37 mm) steel.13. Specimen Preparation13.1 Where the number of steel coupon specimens is not noted in the specific
49、standard, a minimum of three steel couponspecimens shall be tested to show compliance with the appropriate standard and to determine the minimum uncoated steelthickness and strengths. Steel tension test shall be performed in accordance with Test Methods and Definitions A370.13.2 Screw FastenersA minimum of three test specimens are to be tested for tension (pull-out) and for the lap shearconnection. If the result from any one test is more than 15 % higher or lower than the other two, the lowest test value is used, unlessan additio
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