MS51871 (NOTICE 1), MILITARY STANDARD: SCREW, TAPPING HIGH PERFORMANCE, ZONE HARDENED STRUCTURAL THREAD ROLLING, HEXAGON WASHER HEAD (10 JUN 1996).
MS51871 (NOTICE 1), MILITARY STANDARD: SCREW, TAPPING HIGH PERFORMANCE, ZONE HARDENED STRUCTURAL THREAD ROLLING, HEXAGON WASHER HEAD (10 JUN 1996).