... non-standard washer 2:)Material:SS,Cope Conical Stainless Steel Cup Washer Quick Details Place of Origin: ... DFModel Number: DIN,ANSI,GB.JIS,BSMaterial: Carbon steel ,stainless steel Packaging & Delivery Packaging Detail:plastic bag + carton ... : Screws and Fasteners Brand NameDFOriginal of PlaceSuZhou ChinaMaterialCarbon steel ,stainless steel,brassStandardstandard fasteners (GB, DIN, ANSI,JIS AND ...