Square Washer Material:Carbon steel, mild steel, stainless steel Finish:Plain,ZP,YZP,Black,HDG,Nickel,Chrome Size:M5-M100 Square WasherStandard: DIN, BS, IFI, JIS, ISO,GB,ANSI,ASME,Non-Standard.Material: Carbon steel, mild steel, stainless steel,Aluminum.Finish:Plain,ZP,YZP,Cr3+,Cr3+,Black,HDG,Nickel,Chrome,PTFE.Size:M3-M100. OEM/ODM order are welcomeDrawings, samples or other special requirement ...