... , DIN9021, BS4320A/B/C Washer1) Standard: DIN, BS, IFI, JIS, ISO,GB,ANSI,ASME,Non-Standard2) Size: M3–M763) Material: Carbon Steel ... request.6) Surface Condition: remove all burs and sharp edges.7) Packing: Carton, Box, Bag, Pallet or according to your request ...