MS35461B, MILITARY STANDARD: SCREW, CAP, SOCKET HEAD - HEXAGON, STEEL, CORROSION RESISTING, PASSIVATED, UNC-3A (21 SEP 1964)
MS35461B, MILITARY STANDARD: SCREW, CAP, SOCKET HEAD - HEXAGON, STEEL, CORROSION RESISTING, PASSIVATED, UNC-3A (21 SEP 1964).