... 2)Nut: M3-M64 3)washers: M3-M33 1. Treatment: cold forging/hot forging2. Materials option: Stainless Steel C276, 904L, 304, 304L ... etc.3. Standards: GB, DIN, JIS, AISI/ASTM/ANSI/AMSE and BS EN, etc.4. Packing: Cartons then pallet, or wooden ... Arabia, South Korea, etc.6. factory price, accept small order and short delivery time