Standard:UIC, GOST, GB/TB, DIN, BS, AS, ASTM Hex Nut:1:We produce nuts according to UIC, GOST, GB/ ... TB, DIN, BS, AS, ASTM standard or other specifications ... /2 to1-3/8;M10 to M48;4:Material: Carbon steel or stainless steel, Q195, Q235, 35#, 45#, 35CrMo, 42CrMo, 40Cr etc ... West Europe, North Europe, Middle Asia, Southeast of Asia. Hex Nut