ASTM F837-02a

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
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Designation: F 837 – 02a
Standard Specification for
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Stainless Steel Socket Head Cap Screws
This standard is issued under the fixed designation F 837; 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 D 3951 Practice for Commercial Packaging
E 18 Test Methods for Rockwell Hardness and Rockwell
1.1 This specification covers the chemical and mechanical
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Superficial Hardness of Metallic Materials
requirements for stainless steel inch socket head cap screw
E 92 Test Method for Vickers Hardness of Metallic Mate-
(SHCS) with nominal thread 0.060 through 1.500 in. and
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rials
intended for use in applications requiring general corrosion
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E 384 Test Method for Microhardness of Materials
resistance.
F 593 Specification for Stainless Steel Bolts, Hex Cap
1.2 Two groups of stainless steel alloys are covered, auste-
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Screws, and Studs
nitic Group 1 and martensitic Group 5.
F 606 Test Methods for Determining the Mechanical Prop-
1.3 Four property conditions are covered: austenitic Alloy
erties of Externally and Internally Threaded Fasteners,
Group 1 in an annealed condition (AF) at 85 ksi maximum, in
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Washers, and Rivets
two cold worked conditions (CW) at 80 ksi minimum, (CW1)
F 788/F 788M Specification for Surface Discontinuities on
at 102 ksi minimum, and martensitic Alloy Group 5 in a heat
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Bolts, Screws, and Studs, Inch and Metric Series
treated condition (HT) at 160 ksi minimum.
F 1470 GuideforFastenerSamplingforSpecifiedMechani-
1.4 The following precautionary caveat pertains only to the
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cal Properties and Performance Inspection
test method portion, Section 13, of this specification: This
2.2 ASME Standard:
standard does not purport to address all of the safety concerns,
ASME B18.3 Socket Cap, Shoulder, and Set Screws—Inch
if any, associated with its use. It is the responsibility of the user
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Series
of this standard to establish appropriate safety and health
practices and determine the applicability of regulatory limita-
3. Classification
tions prior to use.
3.1 The designation of the alloy group and condition for the
2. Referenced Documents two materials and conditions of this specification shall be
consistent with the stainless steel designations in Specification
2.1 ASTM Standards:
F 593.
A 262 Practices for Detecting Susceptibility to Intergranu-
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3.2 Theausteniticstainlesssteelsocketheadcapscrewshall
lar Attack in Austenitic Stainless Steels
be designated F 837 Group 1 Condition AF, F 837 Group 1
A 342 Test Methods for Permeability of Feebly Magnetic
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Condition CW, or F837 Group 1 Condition CW1.
Materials
3.3 The martensitic stainless steel socket head cap screw
A 380 Practice for Cleaning, Descaling, and Passivation of
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shall be designated F 837 Group 5 Condition HT.
Stainless Steel Parts, Equipment, and Systems
A 555/A 555M Specification for General Requirements for
4. Ordering Information
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Stainless Steel Wire and Wire Rods
4.1 Orders for socket head cap screws under this specifica-
A 751 Test Methods, Practices, and Terminology for
2 tion shall include:
Chemical Analysis of Steel Products
4.1.1 Quantity (number of pieces of each item).
A 967 Specification for Chemical Passivation Treatments
2 4.1.2 Name of the item (socket head cap screws, SHCS).
for Stainless Steel Parts
4.1.3 Size (nominal diameter, thread pitch, thread class,
screw length) or part number.
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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
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Fasteners. Annual Book of ASTM Standards, Vol 15.09.
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Current edition approved July 10, 2002. Published September 2002. Originally Annual Book of ASTM Standards, Vol 03.01.
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published as F 837 – 88. Last previous edition F 837 – 02. 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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F 837 – 02a
4.1.4 Alloy Group and Condition (Group 1 AF, Group 1 6.3 Martensitic alloy Group 5 Condition HT screws shall be
CW, Group 1 CW1, or Group 5 HT). hardened and tempered by heating to 1800 6 50°F sufficient
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4.1.5 ASTM specification and year of issue. When year of for austenitization, holding for at least ⁄2 h, rapid air or oil
issue is not specified, fasteners shall be furni
...