MS51850, MILITARY STANDARD: SCREW, TAPPING - THREAD FORMING, TYPE AB, HEXAGON HEAD, SLOTTED (18 DEC 1968) [SUPERSEDED BY NASM51850].
MS51850, MILITARY STANDARD: SCREW, TAPPING - THREAD FORMING, TYPE AB, HEXAGON HEAD, SLOTTED (18 DEC 1968) [SUPERSEDED BY NASM51850].