... : Carbon steel/ Stainless steel 4)Size:M3-M48 Din 6704 Spring Washer Style:DIN 6704 Material : Carbon steel/ Stainless steelSurface:Zinc plated ... !We can also supply produces include different standars of spring washer DIN128, DIN137, DIN6796, DIN6904,DIN7980, BS4464, BS1802, ANSI/ASME B18.21.1 ... , please feel free to contact with us, thank you. Din6704 Spring Washer