MS9588D, MILITARY STANDARD: BOLT, MACHINE-HEXAGON HEAD, DRILLED, 6 HOLES, FULL SHANK, .500-20 UNJF-3A (30 SEP 1987) [SUPERSEDED BY SAE-AS9588].
MS9588D, MILITARY STANDARD: BOLT, MACHINE-HEXAGON HEAD, DRILLED, 6 HOLES, FULL SHANK, .500-20 UNJF-3A (30 SEP 1987) [SUPERSEDED BY SAE-AS9588].