Heavy Nut 1)Standard:DIN,ANSI,ISO, 2)Materials:carbonsteel. Stainless steel ... :class 4.8 6.8 8. Heavy Nut Size 1/2"-3" Specification ASTM A193 B7/B16/B8M;ASTM A194 2H ... hot dip galvanized.HEX BOLTMaterial: ASTM A193 B7, B8, B8M.Specification: ANSI B18.2.1, ANSI B18.2.6, DIN931 and ... Flat washer and Spring WasherMaterial: Carbon Steel and Stainless Steel.Specification: ASTM F436, ANSI B 18.22.1, ANSI B18 ...