1) DIN6704 spring washer 2)Finish:Zinc plated/ Yellow zinc plated/ ... Carbon steel/ Stainless steel 4)Size:M3-M48 Din 6704 Spring Washer Style:DIN 6704 Material : Carbon steel/ Stainless steelSurface ... requirements!We can also supply produces include different standars of spring washer DIN128, DIN137, DIN6796, DIN6904,DIN7980, BS4464, BS1802, ... free to contact with us, thank you. Din6704 Spring Washer