Flat washer, plain washer: 1)Size:M3 to M36, No.6 to 1-1/2" 2)Standards:DIN125 & IFI L-2 3)Mild steel,45C,SUS304 & SUS316 Features:1) Size: M3 to M36, No.6 to 1-1/2"2) Standards of flat washer: DIN125 & IFI L-23) Material: Mild steel, 45C, SUS304 & SUS316Outer packing: Carton or poly bag + PalletOur company supply flat washer,plain washer, washer, fasteners. Flat Washer