MS51964E, MILITARY STANDARD: SETSCREW, HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNF-3A, PLAIN AND SELF-LOCKING (15-SEP-1988) [SUPERSEDING MS51018] [S/S BY NASM51964]
MS51964E, MILITARY STANDARD: SETSCREW, HEXAGON SOCKET, CUP POINT, ALLOY STEEL, CADMIUM PLATED, UNF-3A, PLAIN AND SELF-LOCKING (15-SEP-1988) [SUPERSEDING MS51018] [S/S BY NASM51964].