MS18068A, MILITARY SPECIFICATION, SET SCREW, HEXAGON SOCKET, CONE POINT, 250 DEG. F, SELF LOCKING ELEMENT, CORROSION RESISTING STEEL, PASSIVATED (22 DEC 1964)
MS18068A, MILITARY STANDARD: SET SCREW, HEXAGON SOCKET, CONE POINT, 250 DEG. F, SELF LOCKING ELEMENT, CORROSION RESISTING STEEL, PASSIVATED (22 DEC 1964).