ASTM F837M-02a(2015)

Standard Specification for Stainless Steel Socket Head Cap Screws [Metric]

ABSTRACT
This specification covers stainless steel metric socket head cap screws (SHCS) intended for use in applications requiring general corrosion resistance. Two groups of stainless steel alloys are covered, austenitic Grade A1 and martensitic Grade C1. Four property classes are covered: austenitic A1-50 in an annealed condition; austenitic A1-55 in a cold worked condition; austenitic A1-70 in a cold worked condition, and martensitic C1-110 in a heat treated condition. Materials shall be tested and the individual grades shall conform to forging; threads; heat treatment; chemical composition; mechanical properties such as thread diameter, tensile strength, yield strength, elongation, core hardness (Vickers and Rockwell); and corrosion resistance values. Workmanship, finish, and appearance are also detailed.
SCOPE
1.1 This specification covers the chemical and mechanical requirements for stainless steel metric socket head cap screws (SHCS) with nominal thread M1.6 through M36 and intended for use in applications requiring general corrosion resistance.  
1.2 Two groups of stainless steel alloys are covered, austenitic Grade A1 and martensitic Grade C1.  
1.3 Four property classes are covered: austenitic A1-50 in an annealed condition at 585 MPa maximum; austenitic A1–55 in a cold worked condition at 550 MPa minimum; austenitic A1-70 in a cold worked condition at 700 MPa minimum, and martensitic C1-110 in a heat treated condition at 1100 MPa minimum.  
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.  
1.5 This hazard statement pertains only to Section 13, Test Methods:  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: 31-Aug-2015
• ICS: 21.060.10 - Bolts, screws, studs
• Technical Committee: F16 - Fasteners
• Drafting Committee: F16.04 - Nonferrous Fasteners

Relations

• Replaces: ASTM F837M-02a(2010) - Standard Specification for Stainless Steel Socket Head Cap Screws [Metric]
• Effective Date: 01-Sep-2015
• Replaced By: ASTM F837M-16 - Standard Specification for Stainless Steel Socket Head Cap Screws [Metric]
• Effective Date: 01-May-2016

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:F837M −02a(Reapproved 2015)
Standard Specification for
1
Stainless Steel Socket Head Cap Screws [Metric]
This standard is issued under the fixed designation F837M; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (´) indicates an editorial change since the last revision or reapproval.
1. Scope A967Specification for Chemical Passivation Treatments for
Stainless Steel Parts
1.1 This specification covers the chemical and mechanical
D3951Practice for Commercial Packaging
requirements for stainless steel metric socket head cap screws
E18Test Methods for Rockwell Hardness of Metallic Ma-
(SHCS) with nominal thread M1.6 through M36 and intended
terials
for use in applications requiring general corrosion resistance.
E92TestMethodforVickersHardnessofMetallicMaterials
1.2 Two groups of stainless steel alloys are covered, auste- 3
(Withdrawn 2010)
nitic Grade A1 and martensitic Grade C1.
E384Test Method for Knoop and Vickers Hardness of
1.3 Four property classes are covered: austenitic A1-50 in Materials
F606MTest Methods for Determining the Mechanical Prop-
anannealedconditionat585MPamaximum;austeniticA1–55
in a cold worked condition at 550 MPa minimum; austenitic erties of Externally and Internally Threaded Fasteners,
Washers, and Rivets (Metric)
A1-70 in a cold worked condition at 700 MPa minimum, and
martensitic C1-110 in a heat treated condition at 1100 MPa F738M Specification for Stainless Steel Metric Bolts,
3
Screws, and Studs (Withdrawn 2014)
minimum.
F1470Practice for Fastener Sampling for Specified Me-
1.4 The values stated in SI units are to be regarded as
chanical Properties and Performance Inspection
standard. No other units of measurement are included in this
2.2 ASME Standard:
standard.
4
ASMEB18.3.1MSocketHeadCapScrews(MetricSeries)
1.5 This hazard statement pertains only to Section 13, Test
Methods: This standard does not purport to address all of the 3. Classification
safety concerns, if any, associated with its use. It is the
3.1 The designation of the property class for the two
responsibility of the user of this standard to establish appro-
materialsandconditionsofthisspecificationshallbeconsistent
priate safety and health practices and determine the applica-
with the stainless steel designations in Specification F738M.
bility of regulatory limitations prior to use.
3.2 Theausteniticstainlesssteelsocketheadcapscrewshall
2. Referenced Documents bedesignatedF837MA1-50,F837MA1-55,orF837MA1-70.
2
2.1 ASTM Standards: 3.3 The martensitic stainless steel socket head cap screw
shall be designated F837M C1-110.
A262Practices for Detecting Susceptibility to Intergranular
Attack in Austenitic Stainless Steels
4. Ordering Information
A342/A342MTest Methods for Permeability of Weakly
Magnetic Materials 4.1 Orders for socket head cap screws under this specifica-
tion shall include:
A380Practice for Cleaning, Descaling, and Passivation of
Stainless Steel Parts, Equipment, and Systems 4.1.1 Quantity (number of pieces of each item),
4.1.2 Name of the item (socket head cap screws, SHCS),
A751Test Methods, Practices, and Terminology for Chemi-
cal Analysis of Steel Products 4.1.3 Size (nominal diameter, thread pitch, thread class,
screw length) or part number,
4.1.4 Property class (A1-50, A1–55, A1-70, or C1-110),
1
This specification is under the jurisdiction of ASTM Committee F16 on
4.1.5 ASTM specification and date of issue. When date of
Fasteners and is the direct responsibility of Subcommittee F16.04 on Nonferrous
issue is not specified, fasteners shall be furnished to the latest
Fasteners.
Current edition approved Sept. 1, 2015. Published November 2015. Originally
issue,
published as F837M – 83. Last previous edition approved in 2010 as
F837M–02a(2010). DOI: 10.1520/F0837M-02AR15.
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 [e-mail]. 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
1

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F837M−02a (2015)
4.1.6 Supplementary requirements, if any (see S1 through 6.3 MartensiticalloyClassC1110screwsshallbehardened
S3), and tempered by heating to 1010 6 30°C sufficient for
1
4.1.7 Additionalspecialrequirements,ifany,tobespecified austenitization, holding for at least ⁄
...

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: F837M − 02a (Reapproved 2010) F837M − 02a (Reapproved 2015)
Standard Specification for
1
Stainless Steel Socket Head Cap Screws [Metric]
This standard is issued under the fixed designation F837M; 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.
1. Scope
1.1 This specification covers the chemical and mechanical requirements for stainless steel metric socket head cap screws
(SHCS) with nominal thread M1.6 through M36 and intended for use in applications requiring general corrosion resistance.
1.2 Two groups of stainless steel alloys are covered, austenitic Grade A1 and martensitic Grade C1.
1.3 Four property classes are covered: austenitic A1-50 in an annealed condition at 585 MPa maximum; austenitic A1–55 in a
cold worked condition at 550 MPa minimum; austenitic A1-70 in a cold worked condition at 700 MPa minimum, and martensitic
C1-110 in a heat treated condition at 1100 MPa minimum.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 This hazard statement pertains only to Section 13, Test Methods: 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:
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A342/A342M Test Methods for Permeability of Weakly Magnetic Materials
A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A751 Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
A967 Specification for Chemical Passivation Treatments for Stainless Steel Parts
D3951 Practice for Commercial Packaging
E18 Test Methods for Rockwell Hardness of Metallic Materials
3
E92 Test Method for Vickers Hardness of Metallic Materials (Withdrawn 2010)
E384 Test Method for Knoop and Vickers Hardness of Materials
F606M Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and
Rivets (Metric)
3
F738M Specification for Stainless Steel Metric Bolts, Screws, and Studs (Withdrawn 2014)
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
2.2 ASME Standard:
4
ASME B 18.3.1M Socket Head Cap Screws (Metric Series)
3. Classification
3.1 The designation of the property class for the two materials and conditions of this specification shall be consistent with the
stainless steel designations in Specification F738M.
3.2 The austenitic stainless steel socket head cap screw shall be designated F837M A1-50, F837M A1-55, or F837M A1-70.
3.3 The martensitic stainless steel socket head cap screw shall be designated F837M C1-110.
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 Oct. 1, 2010Sept. 1, 2015. Published October 2010November 2015. Originally published as F837M – 83. Last previous edition approved in 2010
as F837M – 02a.F837M – 02a(2010). DOI: 10.1520/F0837M-02AR10.10.1520/F0837M-02AR15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
3
The last approved version of this historical standard is referenced on www.astm.org.
4
Available from Global Engineering Documents, 15 Inverness Way, East 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
1

---------------------- Page: 1 ----------------------
F837M − 02a (2015)
4. Ordering Information
4.1 Orders for socket head cap screws under this specification shall include:
4.1.1 Quantity (number of pieces of each item),
4.1.2 Name of the item (socket head cap screws, SHCS),
4.1.3 Size (nominal diameter, thread pitch, thread class, screw length) or part number,
4.1.4 Property class (A1-50,
...