ASTM F837

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.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

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.

1.2 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

ASTM Standards
A262 Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
A342/A342M Test Methods for Permeability of Feebly Magnetic Materials
A380 Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems
A555/A555M Specification for General Requirements for Stainless Steel Wire and Wire Rods
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
E384 Test Method for Microindentation Hardness of Materials
E92 Test Method for Vickers Hardness of Metallic Materials
F1470 Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection
F606 Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, Direct Tension Indicators, and Rivets
F788/F788M Specification for Surface Discontinuities of Bolts, Screws, and Studs, Inch and Metric Series
ASME Standard
ASMEB18.3 Socket Cap, Shoulder, and Set Screws--Inch Series

Index Terms

corrosion resistant; stainless steel; socket head cap screws; Head cap screws; Screws--specifications; Stainless steel screws--specifications; Steel screws--specifications; ICS Number Code 21.060.10 (Bolts, screws, studs)

Citing ASTM Standards

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