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ASTM F835 – Standard Specification for Alloy Steel Socket Button and Flat Countersunk Head Cap Screws


This specification covers the requirements for quenched and tempered alloy steel hexagon socket button (SBHCS) 0.060 through 0.625 thread sizes and flat countersunk (SFHCS) 0.060 through 1.5 thread sizes head cap screws having material properties for high-strength requirements.

Fasteners meeting this specification are intended for shear-type applications and have tensile requirements ranging from 122 to 150 ksi.


alloy steel; cap screws; socket button head; socket flat countersunk head; steel


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