MS9438B, MILITARY STANDARD: SCREW, MACHINE-STEEL, AMS 6304, DIFFUSED NICKEL-CADMIUM PLATED, HEXAGON HEAD, DRILLED, .138-40 UNJF-3A (27 OCT 1995).
MS9438B, MILITARY STANDARD: SCREW, MACHINE-STEEL, AMS 6304, DIFFUSED NICKEL-CADMIUM PLATED, HEXAGON HEAD, DRILLED, .138-40 UNJF-3A (27 OCT 1995).