ASTM C954-07
(Specification)Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
Standard Specification for Steel Drill Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Steel Studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
ABSTRACT
This specification covers the minimum requirements, physical properties, and test methods for steel drill screws for use in fastening gypsum panel products or metal plaster bases to steel members. The screws shall be manufactured from Grade 1018 to 1022 steel wire and the screw surface shall be carbonitrided to a specific depth. The apparatus for testing shall comprise of a power-driven drill screw gun and a vice or a similar device to support the stud during tests. Surface hardness and ductility of the specimens shall conform to the metallurgical property requirements as shall be determined by microhardness and bend test methods, respectively.
SCOPE
1.1 This specification covers minimum requirements for steel drill screws for use in fastening gypsum panel products or metal plaster bases to steel members from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in thickness.
1.2 This specification also covers physical properties and test methods for determining performance requirements.
1.3 The values stated in inch-pound units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
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Designation: C954 – 07
Standard Specification for
Steel Drill Screws for the Application of Gypsum Panel
Products or Metal Plaster Bases to Steel Studs from 0.033
1
in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
This standard is issued under the fixed designation C954; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope* 3. Terminology
1.1 This specification covers minimum requirements for 3.1 Definitions:
steel drill screws for use in fastening gypsum panel products or 3.1.1 For definitions relating to gypsum and related building
metal plaster bases to steel members from 0.033 in. (0.84 mm) materials and systems, see Terminology C11.
to 0.112 in. (2.84 mm) in thickness. 3.2 Definitions of Terms Specific to This Standard:
1.2 This specification also covers physical properties and 3.2.1 steel drill screw—self-drilling tapping screw with the
test methods for determining performance requirements. ability to drill its own hole, form or cut mating threads without
1.3 The values stated in inch-pound units are to be regarded deforming its own threads or breaking during assembly.
as the standard. The values given in parentheses are for
4. Materials
information only.
4.1 Screws shall be manufactured from Grade 1018 to 1022
1.4 The following safety hazards caveat pertains only to the
test methods described in this specification. This standard does steel wire manufactured in accordance with Specification
A510.
not purport to address all of the safety concerns, if any,
associated with its use. It is the responsibility of the user of this
5. Physical Properties
standard to establish appropriate safety and health practices
5.1 Metallurgical Requirements:
and determine the applicability of regulatory limitations prior
5.1.1 The surface of the screw shall be carbonitrided to a
to use.
depth of 0.004 to 0.008 in. (0.10 to 0.20 mm).
2. Referenced Documents
5.1.2 The core hardness shall be 32 to 40 HRB after being
2
2.1 ASTM Standards: drawn at a minimum temperature of 625 °F (330 °C).
5.1.3 The screw shall have no band of free ferrite between
A510 Specification for General Requirements for Wire
Rods and Coarse Round Wire, Carbon Steel the case and core nor shall the case contain appreciable
amounts of retained austenite or other soft constituents.
C11 TerminologyRelatingtoGypsumandRelatedBuilding
Materials and Systems 5.1.4 Surface hardness shall be determined by a micro
hardness instrument at “the root of the thread profile,” as
C1396/C1396M Specification for Gypsum Board
C1513 Specification for Steel Tapping Screws for Cold- exposed by removal of enough material to form a flat surface
along the length of the screw.
Formed Steel Framing Connections
5.1.5 Ductility—Screws shall have sufficient ductility to be
able to withstand a 5° bend without visible signs of fracture
1
when tested as specified in paragraph 8.2.1 of Specification
This specification is under the jurisdiction of ASTM Committee C11 on
Gypsum and Related Building Materials and Systems and is the direct responsibility C1513.
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
5.2 Dimensions and Permissible Variations:
Related Products.
5.2.1 General:
Current edition approved Aug. 1, 2007. Published August 2007. Originally
5.2.1.1 Head Diameter—The head of the screw shall not be
approved in 1981. Last previous edition approved in 2004 as C954 – 04. DOI:
10.1520/C0954-07.
out of round more than 0.021 in. (0.51 mm) and have the
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
following shape and dimensions:
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2.1.2 Screw Diameter— Screws shall have a major diam-
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. eter not less than 0.136 in. (3.45 mm).
*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
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C954 – 07
5.2.1.3 Points, shall provide for self-drilling into steel studs 9. Number of Tests and Retests
from 0.333 in. (0.84 mm) to 0.112 in. (2.84 mm) in thickness
9.1 Testaminimumoffivescrewsforeachtest.Ifanyofthe
and meet the performance tests in Section 6.
first lot fails, test 25 more screws.
5.2.1.4 Driving Recess, shall be a No. 2 “Phillips” design
9.2 If two or more of the second lot fail the second test, then
with a min
...
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. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation:C 954–04 Designation: C 954 – 07
Standard Specification for
Steel Drill Screws for the Application of Gypsum Panel
Products or Metal Plaster Bases to Steel Studs from 0.033
1
in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness
This standard is issued under the fixed designation C 954; 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 (´) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope*
1.1 This specification covers minimum requirements for steel drill screws for use in fastening gypsum panel products or metal
plaster bases to steel members from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in thickness.
1.2 This specification also covers physical properties and test methods for determining performance requirements.
1.3 The values stated in inch-pound units are to be regarded as the standard.The values given in parentheses are for information
only.
1.4 The following safety hazards caveat pertains only to the test methods described in this specification. This standard does not
purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to
establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
A 510 Specification for General Requirements for Wire Rods and Coarse Round Wire, Carbon Steel
C11 Terminology Relating to Gypsum and Related Building Materials and Systems
C36Specification for Gypsum Wallboard 1396/C 1396M Specification for Gypsum Board
C 1513 Specification for Steel Tapping Screws for Cold-Formed Steel Framing Connections
3. Terminology
3.1 Definitions:
3.1.1 For definitions relating to gypsum and related building materials and systems, see Terminology C 11.
3.2 Definitions of Terms Specific to This Standard:
3.2.1 steel drill screw—self-drilling tapping screw with the ability to drill its own hole, form or cut mating threads without
deforming its own threads or breaking during assembly.
4. Materials
4.1 Screws shall be manufactured from Grade 1018 to 1022 steel wire manufactured in accordance with Specification A 510.
5. Physical Properties
5.1 Metallurgical Requirements :
5.1.1 The surface of the screw shall be carbonitrided to a depth of 0.004 to 0.008 in. (0.10 to 0.20 mm).
5.1.2 The core hardness shall be 32 to 40 HRB after being drawn at a minimum temperature of 625 °F (330 °C).
5.1.3 The screw shall have no band of free ferrite between the case and core nor shall the case contain appreciable amounts of
retained austenite or other soft constituents.
5.1.4 Surface hardness shall be determined by a micro hardness instrument at “the root of the thread profile,” as exposed by
removal of enough material to form a flat surface along the length of the screw.
5.1.5 Ductility—Screws shall have sufficient ductility to be able to withstand a 5° bend without visible signs of fracture when
1
This specification is under the jurisdiction of ASTM Committee C11 on Gypsum and Related Building Materials and Systems and is the direct responsibility of
Subcommittee C11.02 on Specifications and Test Methods for Accessories and Related Products.
Current edition approved Oct.Aug. 1, 2004.2007. Published October 2004.August 2007. Originally approved in 1981. Last previous edition approved in 20002004 as
C 954 – 004.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
*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
---------------------- Page: 1 ----------------------
C 954–07
tested as specified in paragraph 8.2.1 of Specification C 1513.
5.2 Dimensions and Permissible Variations:
5.2.1 General:
5.2.1.1 Head Diameter—The head of the screw shall not be out of round more than 0.021 in. (0.51 mm) and have the following
shape and dimensions:
5.2.1.2 Screw Diameter— Screws shall have a major diameter not less than 0.136 in. (3.45 mm).
5.2.1.3 Points, shall provide for self-drilling into steel studs from 0.333
...
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