... :UIC, GOST, GB/TB, DIN, BS, AS, ASTM Hex Nut:1:We produce nuts according to UIC, GOST, GB/TB ... 10,12,3:Size from 1/2 to1-3/8;M10 to M48;4:Material: Carbon steel or stainless steel ... required 6:Protection: Plain (oiled), Hot dip galvanized, White zinc plated, Yellow zinc plated, Black, Dacromet, Geomet or others specified by the customers ... West Europe, North Europe, Middle Asia, Southeast of Asia. Hex Nut