FF-S-85D, FEDERAL SPECIFICATION: SCREW, CAP, SLOTTED AND HEXAGON HEAD (10 MAR 2005)
FF-S-85D, FEDERAL SPECIFICATION: SCREW, CAP, SLOTTED AND HEXAGON HEAD (10 MAR 2005)., This specification covers the types and styles of slotted and hexagon head cap screws, classified in 1.2.1 (see 6.1).