MS9724A, MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, CLOSE TOLERANCE SHANK, CORROSION AND HEAT RESISTANT STEEL, .250-28 USNJF-3A (24 FEB 1986) [SUPERSEDED BY SAE-AS9724].
MS9724A, MILITARY STANDARD: BOLT, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, CLOSE TOLERANCE SHANK, CORROSION AND HEAT RESISTANT STEEL, .250-28 USNJF-3A (24 FEB 1986) [SUPERSEDED BY SAE-AS9724].