Conical Washer Material:Carbon steel, mild steel, stainless steel Finish:Plain,ZP,YZP,Black,HDG,Nickel,Chrome Size:M3-M80 Conical Washer Material: Carbon steel, mild steel, stainless steelFinish:Plain,ZP,YZP,Cr3+,Cr3+,Black,HDG,Nickel,Chrome,PTFE.Size:M3-M80OEM/ODM order are welcomeDrawings, samples or other special requirement is avaliableOur range of product:BOLTS: hex bolts, heavy hex bolts, ...