ASTM F879M
Standard Specification for Stainless Steel Socket Button and Flat Countersunk Head Cap Screws [Metric]
English
1991
Detailed Information
1.1 This specification covers the chemical and mechanical requirements for stainless steel metric hexagon socket button (SBHCS) and flat countersunk (SFHCS) head cap screws with nominal thread M 3 through M 20 intended for use in applications requiring general corrosion resistance.
1.2 Two property classes are covered:
1.2.1 Austenitic Class A 1-50 in an annealed condition at 500 MPa minimum. and
1.2.2 Austenitic Class A 1-70 in a cold-worked condition at 700 MPa minimum.
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