flat washer Flat Washer DIN125, DIN127, DIN9021 Material: Carbon Steel, Stainless Steel (SS304, SS316) Size: M3--M64 flat washerProduct Description1 Effect: The washer used to reduce friction, prevent leakage, isolation and prevent loosening or distribute pressure. 2 Applications: Main service in the petrochemical industry, food machinery, construction decoration, solar energy industry, water ...