1.1 This specification establishes quality assurance requirements for the physical, mechanical, and metallurgical requirements for carbon and alloy steel wire, rods, and bars in coils intended for the manufacture of mechanical fasteners whi This specification establishes quality assurance requirements for carbon and alloy steel wire, rods, and bars for mechanical fasteners. Manufacturing of materials shall conform to the melting, casting, deoxidation, grain size, hardenability, and therma