Black Carbon steel 8.8 grade Flat Washers M2 M2.5 M3 M4 M5 M6 M8 M10 M12 M14-M30
★ Sizes: Available in 16 sizes of flat washers: M2, M2.5, M3, M4, M5, M6, M8, M10, M12 to M30. ★ Function: Flat washers are primarily used to reduce pressure and friction, prevent leaks, provide isolation, prevent loosening, or distribute pressure.