... quality,competitve price. 2.Many types. boltBolts and Nuts 1. Material: Steel,Stainless steel, Brass etc. 2. Size: M5-M64, ... 3, DIN604, DIN6914, ASTM A325, ASTM A 490, DIN571, ASME B 18.2.1,ASTM A394,DIN 6914, ASTM A325, ASTM A490, ISO4017, ASME B ... bolts and stainless steel hex bolts. In addition to stainless steel, bolts are available in various standard materials, including brass, copper, and ...