Standard:DIN, BS, AS, ASTM Slotted Nut:1:We produce nuts according to UIC, GOST, GB/TB, DIN, ... specifications required by customers.2:Grade could be ASTM Gr.1,Gr.2,2H ,BS 4,6,8,10,12,3 ... :Size from 1/2 to1-3/8;M10 to M48;4:Material: Carbon ... America, South America, West Europe, North Europe, Middle Asia, Southeast of Asia. Slotted Nut