ASTM C1002-00

Standard Specification for Steel Self-Piercing Tapping Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs

SCOPE
1.1 This specification covers steel self-piercing tapping screws for use in fastening gypsum panel products and metal plaster bases to cold-formed steel studs less than 0.033 in. (0.84 mm) in thickness and wood members and for fastening gypsum panel products to gypsum board.
1.2 This specification also covers test methods for determining performance requirements and physical properties.
1.3 The values stated in inch-pound units are to be regarded as the standard. The SI (metric) values given in parentheses are approximate and 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.

General Information

• Status: Historical
• Publication Date: 09-Sep-2001
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: C11 - Gypsum and Related Building Materials and Systems
• Drafting Committee: C11.02 - Specifications and Test Methods for Accessories and Related Products

Relations

• Replaced By: ASTM C1002-01 - Standard Specification for Steel Self-Piercing Tapping Screws for the Application of Gypsum Panel Products or Metal Plaster Bases to Wood Studs or Steel Studs
• Effective Date: 10-Sep-2001
• Referred By: ASTM C841-23 - Standard Specification for Installation of Interior Lathing and Furring
• Effective Date: 10-Sep-2001
• Referred By: ASTM C844-15(2021) - Standard Specification for Application of Gypsum Base to Receive<brk/> Gypsum Veneer Plaster
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1280-18 - Standard Specification for Application of Exterior Gypsum Panel Products for Use as Sheathing
• Effective Date: 10-Sep-2001
• Referred By: ASTM C840-20 - Standard Specification for Application and Finishing of Gypsum Board
• Effective Date: 10-Sep-2001
• Referred By: ASTM C645-18 - Standard Specification for Nonstructural Steel Framing Members
• Effective Date: 10-Sep-2001
• Referred By: ASTM E2634-18(2022) - Standard Specification for Flat Wall Insulating Concrete Form (ICF) Systems
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1921/C1921M-22 - Standard Test Method for Comparative Impact Testing of Gypsum Panel Outside 90° Corner Systems
• Effective Date: 10-Sep-2001
• Referred By: ASTM C1861-23 - Standard Specification for Lathing and Furring Accessories, and Fasteners, for Interior and Exterior Portland Cement-Based Plaster
• Effective Date: 10-Sep-2001

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1002 – 00
Standard Specification for
Steel Self-Piercing Tapping Screws for the Application of
Gypsum Panel Products or Metal Plaster Bases to Wood
Studs or Steel Studs
This standard is issued under the fixed designation C 1002; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope * 3.2.1 self-piercing, v—the ability to penetrate without ben-
efit of a pre-drilled hole with sharp-point angles of not more
1.1 This specification covers steel self-piercing tapping
than 30°.
screws for use in fastening gypsum panel products and metal
3.2.2 spin-out, v—for a screw, the continued rotation of a
plaster bases to cold-formed steel studs less than 0.033 in.
screw without further penetration into the substrate.
(0.84 mm) in thickness and wood members and for fastening
gypsum panel products to gypsum board.
4. Classification
1.2 This specification also covers test methods for determin-
4.1 Steel screws covered by this specification are of four
ing performance requirements and physical properties.
types of thread configurations:
1.3 The values stated in inch-pound units are to be regarded
4.1.1 Type G, course-pitch high-thread self-piercing screws
as the standard. The SI (metric) values given in parentheses are
for fastening gypsum board to gypsum board.
approximate and are for information only.
4.1.2 Type S, fine-thread screw for fastening gypsum board
1.4 The following safety hazards caveat pertains only to the
to cold formed steel members.
test methods described in this specification: This standard does
4.1.3 Type W, course-thread screw for fastening gypsum
not purport to address all of the safety concerns, if any,
board to wood members.
associated with its use. It is the responsibility of the user of this
4.1.4 Type A, course-pitch tapping screw thread for fasten-
standard to establish appropriate safety and health practices
ing metal plaster bases to wood or cold-formed steel.
and determine the applicability of regulatory limitations prior
to use.
5. Materials
5.1 Steel Wire, for manufacturing screws, Specification
2. Referenced Documents
A 548, Grades 1013 to 1022.
2.1 ASTM Standards:
A 548 Specification for Steel Wire, Carbon, Cold-Heading
6. Physical Properties
Quality for Tapping or Sheet Metal Screws
6.1 Hardness:
C 11 Terminology Relating to Gypsum and Related Build-
3 6.1.1 The surface of Type S, Type W, and Type A screws
ing Materials and Products
shall be case hardened to a depth of not less than 0.002 in.
C 36 Specification for Gypsum Wallboard
(0.05 mm) with case hardness not less than 45 HRC.
C 645 Specification for Nonstructural Steel Framing Mem-
6.1.2 The surface of Type G screws is not required to be
bers
3 case hardened.
C 847 Specification for Metal Lath
6.2 Ductility—The screws shall have sufficient ductility to
3. Terminology be able to withstand a 15° bend without visible signs of fracture
when tested as specified in 12.6.6.
3.1 Definitions: For definitions relating to gypsum and
related building materials and systems, see Terminology C 11.
7. Performance Requirements
3.2 Definitions of Terms Specific to This Standard:
7.1 Type G Screws:
7.1.1 Screws shall be able to self-pierce and drive into
This specification is under the jurisdiction of ASTM Committee C11 on
gypsum panel products.
Gypsum and Related Building Materials and Systems and is the direct responsibility
7.1.2 Screw threads shall be adequate to pull the head of the
of Subcommittee C11.02 on Specifications and Test Methods for Accessories and
Related Products. screw below the surface of the gypsum panel product when
Current edition approved July 10, 2000. Published October 2000. Originally
tested as specified in 12.6.2.
published as C 1002 – 83. Last previous edition C 1002 – 98.
7.2 Type S Screws:
Discontinued; see 1990 Annual Book of ASTM Standards, Vol 01.03.
7.2.1 General—Screws shall be able to self-pierce and drive
Annual Book of ASTM Standards, Vol 04.01.
*A Summary of Changes section appears at the end of this standard.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
C 1002
into cold-formed steel members in less than 2 s, when tested as penetrate wood members not less than ⁄8 in. (15.9 mm).
specified in 12.6.3.1. 8.6 Threads—Either single or multiple thread design.
7.2.2 Screws for Fastening Gypsum Panel Products—Screw 8.7 Points—Self-piercing design.
threads shall be adequate to pull the head of the screw below
9. Finish and Appearance
the surface of the gypsum panel product, without spin-out,
9.1 Form—The form shall be straight and neatly formed.
when tested as specified in 12.6.3.1.
9.2 Threads—The threads shall be clean and smooth.
7.3 Type W Screws:
9.3 Finish—Screws shall have a corrosion-resistant treat-
7.3.1 General—Screw threads shall be able to self-pierce
ment. The treatment shall not inhibit adhesion to finishing
and drive into wood members.
compounds nor bleed through field-applied decoration.
7.3.2 Screws for Fastening Gypsum Panel Products—Screw
threads shall be adequate to pull the head of the screw below
10. Sampling
the surface of the gypsum panel product, without spin-out
10.1 Obtain not less than one specimen of each type of
when tested as specified in 12.6.4.1.
screw to be tested from each of five containers, with not less
7.4 Type A Screws:
than five screws per 16 000 screws, to constitute a lot for
7.4.1 General—Screw shall be able to pierce and drive into
testing.
wood or cold-formed steel members.
11. Number of Tests and Retests
7.4.2 Screws for Fastening Metal Plaster Bases—Screw
threads shall be adequate to pull a metal plaster base tightly
11.1 If any of the first lot fails the test, test 25 more screws.
enough against the face of a wood or steel stud, without
11.2 If two or more screws of the second lot fail the second
spin-out, so that when subjected to a steady pull, the plaster
test, then the represented lot fails to meet the specified
base will tear before slipping out from under the screw head,
requirements.
when tested in accordance with 12.6.5.1 or 12.6.5.2.
12. Test Methods
8. Dimensions and Permissible Variations
12.1 The following test methods set forth procedures used
8.1 Head Diameter: to determine the ability of the screws to self-pierce through
8.1.1 General—Heads shall be permitted to be out of round gypsum panel and metal plaster base and into the backup
not more than 0.02 in. (0.51 mm). material without spin-out.
8.1.2 Screws for Fastening Gypsum Board—Not less than 12.1.1 The test methods can also be used to determine
0.315 in. (8 mm). whether or not alternate screw driving recesses will have
8.1.3 Screws for Fastening Metal Plaster Bases—Not less performance values equal to those of the “Phillips” recess
than 0.437 in. (11.1 mm). specified.
12.2 Significance and Use—The test methods provide pro-
8.2 Head Contour:
8.2.1 Screws for Fastening Gypsum Panel Products—The cedures for evaluating the physical properties and performance
top of the head shall be flat. The outer flange thickness shall be requirements of steel self-piercing screws. The degree of
0.025 6 0.005 in. (0.64 6 0.13 mm). The contour beneath the correlation between these tests and service performance has not
flange head shall be such that the screw head shall be able to been determined.
be driven so that the head of the screw rests immediately below 12.3 Apparatus:
the surface of the gypsum panel product. 12.3.1 Screw Gun—Standard manufacture electric screw
8.2.2 Screws for Fastening Metal Plaster Bases—The top of gun, turning at a minimum of 2500 r/min having a bit suitable
the screw shall be either flat or contoured. The underside of the for the driving recess of the screw being tested.
head shall be flat or near flat. The threads shall extend to the 12.3.2 Timing Device—Standard stopwatch, calibrated
underside of the head. in ⁄10 s.
8.3
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