MS90727E, MILITARY STANDARD: SCREW, CAP, HEXAGON HEAD (FINISHED HEXAGON BOLT), ALLOY STEEL, GRADE 8, ZINC COATED UNF-2A, PLAIN AND SELF-LOCKING (21 JUN 1978) [SUPERSEDED BY ANSI-B18.2.1].
MS90727E, MILITARY STANDARD: SCREW, CAP, HEXAGON HEAD (FINISHED HEXAGON BOLT), ALLOY STEEL, GRADE 8, ZINC COATED UNF-2A, PLAIN AND SELF-LOCKING (21 JUN 1978) [SUPERSEDED BY ANSI-B18.2.1].