MS9712A, MILITARY STANDARD: SCREW, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, DRILLED, SILVER PLATED, CORROSION AND HEAT RESISTANT STEEL,.138-40 UNJF-3A (24 FEB 1986) [S/S BY SAE-AS9712]

MS9712A, MILITARY STANDARD: SCREW, MACHINE-DOUBLE HEXAGON, EXTENDED WASHER HEAD, DRILLED, SILVER PLATED, CORROSION AND HEAT RESISTANT STEEL,.138-40 UNJF-3A (24 FEB 1986) [S/S BY SAE-AS9712].