ASTM F879-02

Standard Specification for Stainless Steel Socket Button and Flat Countersunk Head Cap Screws

SCOPE
1.1 This specification covers the chemical and mechanical requirements for stainless steel inch hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws with nominal thread 0.060 through 0.625 in. intended for use in applications requiring general corrosion resistance.  
1.2 The following two conditions are covered:  
1.2.1 Austenitic alloy condition AF in an annealed condition at 85 ksi maximum and  
1.2.2 Austenitic alloy condition CW in a cold-worked condition at 95 ksi minimum.  
1.3 The following precautionary caveat pertains only to the test method portion, Section 12, of this specification: This standard does not purport to address all of the safety problems 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-Jun-2002
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.04 - Nonferrous Fasteners

Relations

• Replaces: ASTM F879-01 - Standard Specification for Stainless Steel Socket Button and Flat Countersunk Head Cap Screws
• Effective Date: 10-Jun-2002
• Replaced By: ASTM F879-02a - Standard Specification for Stainless Steel Socket Button and Flat Countersunk Head Cap Screws
• Effective Date: 10-Oct-2002
• Referred By: ASTM C1921/C1921M-22 - Standard Test Method for Comparative Impact Testing of Gypsum Panel Outside 90° Corner Systems
• Effective Date: 10-Jun-2002

Standards Content (Sample)

NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: F 879 – 02
Standard Specification for
Stainless Steel Socket Button and Flat Countersunk Head
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Cap Screws
This standard is issued under the fixed designation F 879; 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.
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1. Scope for Stainless Steel Parts
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D 3951 Practice for Commercial Packaging
1.1 This specification covers the chemical and mechanical
F 593 Specification for Stainless Steel Bolts, Hex Cap,
requirements for stainless steel inch hexagon socket button
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Screws, and Studs
(SBHCS) and flat countersunk (SFHCS) head cap screws with
F 606 Test Methods for Determining the Mechanical Prop-
nominal thread 0.060 through 0.625 in. intended for use in
erties of Externally and Internally Threaded Fasteners,
applications requiring general corrosion resistance.
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Washers, and Rivets
1.2 The following two conditions are covered:
F 788/F 788M Specification for Surface Discontinuities of
1.2.1 Austenitic alloy condition AF in an annealed condition
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Bolts, Screws, and Studs, Inch and Metric Series
at 85 ksi maximum and
F 1470 Guide for Fastener Sampling for Specified Mechani-
1.2.2 Austenitic alloy condition CW in a cold-worked
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cal Properties and Performance Inspection
condition at 95 ksi minimum.
2.2 ASME Standard:
1.3 The following precautionary caveat pertains only to the
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B 18.3 Socket Cap, Shoulder and Set Screws (Inch Series)
test method portion, Section 12, of this specification: This
standard does not purport to address all of the safety concerns,
3. Classification
if any, associated with its use. It is the responsibility of the user
3.1 The designation of the alloy group and condition of this
of this standard to establish appropriate safety and health
specification shall be consistent with the stainless steel desig-
practices and determine the applicability of regulatory limita-
nations in Specification F 593.
tions prior to use.
3.2 The austenitic stainless steel socket screw shall be
2. Referenced Documents designated F 879 Group 1 Condition AF or F 879 Group 1
Condition CW.
2.1 ASTM Standards:
A 262 Practices for Detecting Susceptibility to Intergranu-
4. Ordering Information
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lar Attack in Austenitic Stainless Steels
4.1 Orders for material under this specification shall include
A 342 Test Methods for Permeability of Feebly Magnetic
3 the following information:
Materials
4.1.1 Quantity (number of pieces of each item).
A 380 Practice for Cleaning, Descaling, and Passivation of
2 4.1.2 Name of the screw, SBHCS or SFHCS.
Stainless Steel Parts, Equipment, and Systems
4.1.3 Dimensions, including nominal thread designation,
A 555/A555M Specification for General Requirements for
2 thread pitch, and nominal screw length (inches). A standard
Stainless Steel Wire and Wire Rods
part number may be used for this definition.
A 751 Test Methods, Practices, and Terminology for
2 4.1.4 Alloy group, and condition (Group 1 AF or Group 1
Chemical Analysis of Steel Products
CW).
A 967 Specification for Chemical Passivation Treatments
4.1.5 Certification, if required (see Section 15).
4.1.6 ASTM specification and year of issue.
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This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
Fasteners.
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Current edition approved June 10, 2002. Published June 2002. Originally Annual Book of ASTM Standards, Vol 15.09.
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published as F 879 – 86. Last previous edition F 879 – 01. Annual Book of ASTM Standards, Vol 01.08.
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Annual Book of ASTM Standards, Vol 01.03. Available from Global Engineering Documents, 15 Inverness Way East,
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Annual Book of ASTM Standards, Vol 03.04. Englewood, CO 80112.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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NOTICE: This standard has either been superceded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
F 879
4.1.7 Any special or supplemental requirements (see not be subject to tension tests, but shall conform to the
Supplementary Requirements S1 through S6). maximum and minimum hardness requirements of Table 1.
5. Materials and Manufacture 8. Corrosion Resistance Requirements
5.1 Screws shall be formed by upsetting or extruding, or 8.1 Carbide Precipitation:
both. 8.1.1 Rod, bar, and wire in the austenitic alloy group 1 used
5.2 Screws shall be roll threaded. to make fasteners in accordance with this specificatio
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