ITEM NAME:360pcs Flat and Lock Washers for Bolt Screws - M2 M2.5 M3 M4 M5 M6 M8 M10 Description: - Constructed of high quality corrosion-resistant galvanized finish for long-term use and durability against tough environments and.Size: M2 (50pcs); M2.5 (50pcs); M3 (50pcs); M4 (50pcs); M5 (50pcs); M6 (50pcs); M8 (40pcs); M10 (20pcs). 40 Pieces of M8 Flat Washers. 50 Pieces of M4 Flat Washers. 20 Pieces of M10 Flat Washers. 50 Pieces of M2 Flat Washers.