MS9212, MILITARY STANDARD: BOLT, MACHINE-STEEL AMS 6304, DIFFUSED NICKEL-CADIUM PLATED, DOUBLE HEXAGON EXTENDED WASHER HEAD, .4375-20 UNJF-3A (10 DEC 1966) [SUPERSEDED BY SAE-AS9212].
MS9212, MILITARY STANDARD: BOLT, MACHINE-STEEL AMS 6304, DIFFUSED NICKEL-CADIUM PLATED, DOUBLE HEXAGON EXTENDED WASHER HEAD, .4375-20 UNJF-3A (10 DEC 1966) [SUPERSEDED BY SAE-AS9212].