FF-S-86F, FEDERAL SPECIFICATION (07-JAN-2020)

FF-S-86F, FEDERAL SPECIFICATION (07-JAN-2020)., This specification covers socket-head cap screws with multiple head configurations utilizing alloy steels (Grades 4137, 4140, 4142, 4145, 4340, 8740 and 5137M), corrosion-resistant steels (types 302, 304, 304L, 305, 316, 316L and 384), heat and corrosion-resistant steel A286, non-ferrous materials including nickel-copper alloy, nickel-copper-aluminum alloy, Inconel 625 or 686, or titanium, with cadmium plating, zinc plating, phosphate coating or black chemical finish. See the appropriate sections for limitations on use of each coating.