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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.
ASTM F837M-20 Referenced Document
ASTM A262 Standard Practices for Detecting Susceptibility to Intergranular Attack in Austenitic Stainless Steels
ASTM A342/A342M Standard Test Methods for Permeability of Feebly Magnetic Materials
ASTM A380/A380M Standard Practice for Cleaning, Descaling, and Passivation of Stainless Steel Parts, Equipment, and Systems*, 2024-04-22 Update
ASTM A751 Standard Test Methods, Practices, and Terminology for Chemical Analysis of Steel Products
ASTM A967/A967M Standard Specification for Chemical Passivation Treatments for Stainless Steel Parts*, 2024-04-22 Update
ASTM D3951 Standard Practice for Commercial Packaging
ASTM E18 Standard Test Methods for Rockwell Hardness of Metallic Materials*, 2022-05-01 Update
ASTM E384 Standard Test Method for Microindentation Hardness of Materials
ASTM E92 Standard Test Method for Vickers Hardness of Metallic Materials
ASTM F1470 Standard Practice for Fastener Sampling for Specified Mechanical Properties and Performance Inspection*, 2024-01-26 Update
ASTM F606M Standard Test Methods for Determining the Mechanical Properties of Externally and Internally Threaded Fasteners, Washers, and Rivets [Metric]
ASTM F738M Standard Specification for Stainless Steel Metric Bolts, Screws, and Studs *, 2024-04-22 Update