Standard:DIN, BS, AS, ASTM Slotted Nut:1:We produce nuts according to UIC, GOST, GB/TB, ... ,3:Size from 1/2 to1-3/8;M10 to M48;4:Material: Carbon steel or stainless steel, Q195, Q235, 35 ... , West Europe, North Europe, Middle Asia, Southeast of Asia. Slotted Nut