ASTM A 563 - 07 Standard Specification for Carbons and Alloy Steel Nuts

American Society for Testing and Materials (ASTM). Current edition approved Aug. 1, 2007. Published August 2007. Originally approved in 1966. Last previous edition approved in 2004 as A 563 – 04a. 8 p. This specification covers chemical and mechanical requirements for eight grades of carbon and alloy steel nuts for general structural and mechanical uses on bolts, studs, and other externally threaded parts.