... Stainless steel 4)Finish:Zinc,Black,Nickel,Tin Flat Washer 1)Standard:DIN,ANSI,BS,JIS,GB 2)Size ... to your request.6) Surface Condition: remove all burs and sharp edges.7) Packing: Carton, Box, Bag, Pallet ... avaliable for us.9) Working Process Include: cold punching, and machining, also CNC machine, can do OEM order.10 ... to our philosophy of client first,quality second and price third. flat washer