Steel Hex Nut 1)Standard:DIN,ANSI,ISO, 2)Materials:carbonsteel ... 3)Grade:class 4.8 6.8 8. Steel Hex Nut Size 1/2"-3" Specification ASTM A193 B7/B16 ... . Finish: Plain, black ,zinc plated, hot dip galvanized.HEX BOLTMaterial: ASTM A193 B7, B8, B8M.Specification: ANSI B18 ... 2.1, ANSI B18.2.6, DIN931 and DIN933.HEX NUTMaterial: ASTM A194 2H, ASTM A194 Gr.8, ... to customers' Drawings and/or samples Steel Hex Nut