ASTM F837-08
(Specification)Standard Specification for Stainless Steel Socket Head Cap Screws
Standard Specification for Stainless Steel Socket Head Cap Screws
ABSTRACT
This specification covers the chemical and mechanical requirements for stainless steel inch socket head cap screw (SHCS) with specific nominal thread and intended for use in applications requiring general corrosion resistance. Two groups and four property conditions of stainless steel alloys are covered: austenitic Alloy Group 1 in a specific annealed condition and in two cold worked conditions; and martensitic Alloy Group 5 in a heat treated condition. The screws shall be tested in accordance with the specified mechanical testing requirements for the alloy group and condition nominal thread diameter and length, axial strength, screw extension, and hardness. The screws shall also be tested for tensile strength, yield strength, and elongation.
SCOPE
1.1 This specification covers the chemical and mechanical requirements for stainless steel inch socket head cap screw (SHCS) with nominal thread 0.060 through 1.500 in. and intended for use in applications requiring general corrosion resistance.
1.2 Three groups of stainless steel alloys are covered, austenitic Group 1 and 2 and martensitic Group 5.
1.3 Four property conditions are covered: austenitic Alloy Groups 1 and 2 in an annealed condition (AF) at 85 ksi maximum, in two cold worked conditions (CW) at 80 ksi minimum, (CW1) at 102 ksi minimum, and martensitic Alloy Group 5 in a heat treated condition (HT) at 160 ksi minimum.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.
1.5 The following precautionary caveat pertains only to the test method portion, Section 13, of 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:F837 −08
StandardSpecification for
1
Stainless Steel Socket Head Cap Screws
ThisstandardisissuedunderthefixeddesignationF837;thenumberimmediatelyfollowingthedesignationindicatestheyearoforiginal
adoptionor,inthecaseofrevision,theyearoflastrevision.Anumberinparenthesesindicatestheyearoflastreapproval.Asuperscript
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 A380Practice for Cleaning, Descaling, and Passivation of
Stainless Steel Parts, Equipment, and Systems
1.1 This specification covers the chemical and mechanical
A555/A555MSpecification for General Requirements for
requirements for stainless steel inch socket head cap screw
Stainless Steel Wire and Wire Rods
(SHCS) with nominal thread 0.060 through 1.500 in. and
A751Test Methods, Practices, and Terminology for Chemi-
intended for use in applications requiring general corrosion
cal Analysis of Steel Products
resistance.
A967Specification for Chemical Passivation Treatments for
1.2 Three groups of stainless steel alloys are covered,
Stainless Steel Parts
austenitic Group 1 and 2 and martensitic Group 5.
D3951Practice for Commercial Packaging
E18Test Methods for Rockwell Hardness of Metallic Ma-
1.3 Four property conditions are covered: austenitic Alloy
Groups 1 and 2 in an annealed condition (AF) at 85 ksi terials
E92TestMethodforVickersHardnessofMetallicMaterials
maximum, in two cold worked conditions (CW) at 80 ksi
3
minimum, (CW1) at 102 ksi minimum, and martensitic Alloy (Withdrawn 2010)
E384Test Method for Knoop and Vickers Hardness of
Group 5 in a heat treated condition (HT) at 160 ksi minimum.
Materials
1.4 Thevaluesstatedininch-poundunitsaretoberegarded
F606Test Methods for Determining the Mechanical Proper-
as standard. The values given in parentheses are mathematical
ties of Externally and Internally Threaded Fasteners,
conversions to SI units that are provided for information only
Washers, Direct Tension Indicators, and Rivets
and are not considered standard.
F788/F788MSpecification for Surface Discontinuities of
1.5 The following precautionary caveat pertains only to the
Bolts, Screws, and Studs, Inch and Metric Series
test method portion, Section 13, of this specification: This
F1470Practice for Fastener Sampling for Specified Me-
standard does not purport to address all of the safety concerns,
chanical Properties and Performance Inspection
if any, associated with its use. It is the responsibility of the user
2.2 ASME Standard:
of this standard to establish appropriate safety and health
ASME B18.3Socket Cap, Shoulder, and Set Screws—Inch
practices and determine the applicability of regulatory limita-
4
Series
tions prior to use.
3. Classification
2. Referenced Documents
3.1 Theausteniticstainlesssteelsocketheadcapscrewshall
2
2.1 ASTM Standards:
be designated F837 Group 1 or 2 ConditionAF, F837 Group 1
A262Practices for Detecting Susceptibility to Intergranular
or 2 Condition CW, or F837 Group 1 or 2 Condition CW1.
Attack in Austenitic Stainless Steels
3.2 The martensitic stainless steel socket head cap screw
A342/A342MTest Methods for Permeability of Feebly
shall be designated F837 Group 5 Condition HT.
Magnetic Materials
4. Ordering Information
1
4.1 Orders for socket head cap screws under this specifica-
This specification is under the jurisdiction of ASTM Committee F16 on
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
tion shall include:
Fasteners.
4.1.1 Quantity (number of pieces of each item).
CurrenteditionapprovedJuly1,2008.PublishedJuly2008.Originallyapproved
´1
in 1988. Last previous edition approved in 2002 as F837–02a . DOI: 10.1520/
F0837-08.
2 3
For referenced ASTM standards, visit the ASTM website, www.astm.org, or The last approved version of this historical standard is referenced on
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM www.astm.org.
4
Standards volume information, refer to the standard’s Document Summary page on Available from Global Engineering Documents, 15 Inverness Way, East
the ASTM website. Englewood, CO 80112-5704, http://www.global.ihs.com.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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F837−08
4.1.2 Name of the item (socket head cap screws, SHCS). temperature and then cooled at a rate sufficient to prevent
4.1.3 Size (nominal diameter, thread pitch, thread class, precipitation of the carbide and to provide the properties
screw length) or part number. specified in Table 1.
4.1.4 Alloy Group (see 7.1) and Condition (Group 1 or 2
6.2 WhenConditionCWorCW1isspecified,theaustenitic
AF, Group 1 or 2 CW, Group 1 or 2 CW1, or Group 5 HT).
alloysshal
...
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.
e1
Designation:F837–02a Designation: F 837 – 08
Standard Specification for
1
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 (´) 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
e NOTE—Footnotes A and C in Table 1 were editorially corrected in December 2004.
1. Scope
1.1 This specification covers the chemical and mechanical requirements for stainless steel inch socket head cap screw (SHCS)
with nominal thread 0.060 through 1.500 in. and intended for use in applications requiring general corrosion resistance.
1.2Two groups of stainless steel alloys are covered, austenitic Group 1 and martensitic Group 5.
1.3Four property conditions are covered: austenitic Alloy Group 1 in an annealed condition (AF) at 85 ksi maximum, in two
cold worked conditions (CW) at 80 ksi minimum, (CW1) at 102 ksi minimum, and martensitic Alloy Group 5 in a heat treated
condition (HT) at 160 ksi minimum.
1.4
1.2 Three groups of stainless steel alloys are covered, austenitic Group 1 and 2 and martensitic Group 5.
1.3 Four property conditions are covered: austenitic Alloy Groups 1 and 2 in an annealed condition (AF) at 85 ksi maximum,
in two cold worked conditions (CW) at 80 ksi minimum, (CW1) at 102 ksi minimum, and martensitic Alloy Group 5 in a heat
treated condition (HT) at 160 ksi minimum.
1.4 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical
conversions to SI units that are provided for information only and are not considered standard.
1.5 The following precautionary caveat pertains only to the test method portion, Section 13, of 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 262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A342 342/A 342M Test Methods for Permeability of Feebly Magnetic Materials
A 380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A 555/A 555M Specification for General Requirements for Stainless Steel Wire and Wire Rods
A 751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A 967 Specification for Chemical Passivation Treatments for Stainless Steel Parts
D 3951 Practice for Commercial Packaging
E 18Test Methods for Rockwell Hardness and Rockwell Superficial Hardness of Metallic Materials Test Methods for Rockwell
Hardness of Metallic Materials
E 92 Test Method for Vickers Hardness of Metallic Materials
E 384Test Method for Microhardness of Materials
F593Specification for Stainless Steel Bolts, Hex Cap Screws, and Studs Test Method for Microindentation Hardness of
Materials
F 606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers,
Direct Tension Indicators, and Rivets
F 788/F 788M Specification for Surface Discontinuities onof Bolts, Screws, and Studs, Inch and Metric Series
F 1470 Guide for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
1
This specification is under the jurisdiction of ASTM Committee F16 on Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous Fasteners .
Current edition approved July 10, 2002. Published September 2002. Originally published as F837–88. Last previous edition F837–02.
´1
Current edition approved July 1, 2008. Published July 2008. Originally approved in 1988. Last previous edition approved in 2002 as F 837 – 02a .
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.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1
---------------------- Page: 1 ----------------------
F837–08
2.2 ASME Standard:
3
ASME B18.3 Sock
...
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