Standard Specification for Steel Tapping Screws …

1 Designation: C 1513 04. Standard Specification for Steel Tapping Screws for Cold-Formed Steel Framing Connections1. This Standard is issued under the fixed designation C 1513; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A. superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope* F 1941 Specification for Electrodeposited Coatings on This specification covers Steel self-drilling and self- Threaded Fasteners (Unified Inch screw Threads (UN/.))

2 Piercing Tapping Screws for the connection of cold-formed Steel UNR)). members manufactured in accordance with Specifications ANSI/ASME Documents: C 645 and C 955. This specification also covers test methods Inspection and Quality Assurance for General for determining performance requirements and physical prop- Purpose Fasteners3. erties. Standard Specification for Thread Forming and The values stated in inch-pound units are to be regarded Thread-Cutting Screws3. as the Standard . The SI equivalents of the inch-pound units are SAE standards : approximate.

3 SAE J78-1998 Steel Self-Drilling Tapping Screws4. The following safety hazards caveat pertains only to the SAE J933 Mechanical and Quality Requirements for Tap- test methods described in this specification. This Standard does ping Screws4. not purport to address all of the safety concerns, if any, 3. Terminology associated with its use. It is the responsibility of the user of this Standard to establish appropriate safety and health practices Definitions For definitions relating to gypsum and and determine the applicability of regulatory requirements related building materials and systems, use Terminology C 11.

4 Prior to use. Definitions of Terms Specific to This Standard : bearing surface (of the screw ), n the supporting or 2. Referenced Documents locating surface of a fastener with respect to the part which it ASTM standards : 2 fastens (mates). The loading of the fastener is usually through A 370 Test Methods and Definitions for Mechanical Testing the bearing surface, (that is, the bearing surface of the hex of Steel Products washer head style is under the head, the part that touches the A 510 Specification for General Requirements for Wire top material being fastened).

5 Rods and Coarse Round Wire, Carbon Steel case depth (of the screw ), n the thickness of the B 117 Practice for Operating Salt Spray (Fog) Apparatus hardened surface of the screw . C 11 Terminology Relating to Gypsum and Related Build- countersunk head style (for a screw ), n all screw ing Materials and Systems head designs that sink into the top material being fastened and C 645 Specification for Nonstructural Steel Framing Mem- that have the bearing surface (see ), at the top of the head bers (that is, flat and bugle). C 955 Specification for Load-Bearing (Transverse and crest (of the screw thread), n the highest point of the Axial) Steel Studs, Runners (Tracks) and Bracing or screw thread.

6 Bridging for screw Application of Gypsum Panel Products drill capacity (of the self-drilling screw ), n the total and Metal Plaster Bases thickness of material the fastener is designed to drill through, including any space between the layers. head styles (of the screw ), n refer to Fig. 1 drawings. 1. bugle head, n bugle shape countersinking head This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility typically used for fastening gypsum panel products to wood of Subcommittee on Specifications and Test Methods for Accessories and and Steel .

7 Related Products. Current edition approved Oct. 1, 2004. Published October 2004. Originally approved in 2001. Last previous edition approved in 2001 as C 1513 01. 2 3. For referenced ASTM standards , visit the ASTM website, , or Available from ASME International Headquarters, Three Park Avenue, New contact ASTM Customer Service at For Annual Book of ASTM York, NY 10016-5990. 4. standards volume information, refer to the Standard 's Document Summary page on Available from Society of Automotive Engineers, 400 Commonwealth Drive, the ASTM website. Warrendale, PA 15096-0001.

8 *A Summary of Changes section appears at the end of this Standard . Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States. 1. Copyright by ASTM Int'l (all rights reserved); Tue Mar 20 15:07:20 EST 2007. Downloaded/printed by Byron Stewart (Primesource) pursuant to License Agreement. No further reproductions authorized. C 1513 04. Self-piercing Tapping Screws shall be in accordance with head dimensions as shown in ANSI/ASME Total Case Depth Screws shall have a total case depth conforming to the tabulation in Table 1.

9 Case depth shall be measured at the mid-point be- tween crest and root on the thread shank. FIG. 1 Head Styles 7. Packaging and Head Marking Screws shall be marked with manufacturer's/supplier's hex washer head, n has an indented top surface head marking for traceability. and six flat sides formed integrally with a flat washer which Screws shall be packaged in substantial commercial projects beyond the sides and provides a flat bearing surface. shipping containers, constructed so as to preserve the contents lath head, n see modified truss. in good condition and to ensure acceptance and safe delivery modified truss, n low profile round washer head.

10 By common or other carriers. pan framing head, n flat top surface rounding into Individual packages shall be so constructed that the cylindrical sides and a flat bearing surface. contents shall be able to be partially removed without destroy- pan head, n a slightly rounded top surface round- ing the container's ability to serve as a receptacle for the ing into cylindrical sides and a flat bearing surface. remainder of the contents. pancake head, n lower profile head style than the Individual packages and shipping containers shall be hex washer and pan head with a larger flat bearing surface.