Specifications Material 65 SteelCoating Black finish for oxidation and corrosion resistanceSizes included M3x9 M4x12 M5x12 M6x14 M8x18 M10x20Quantity 340 pieces in totalFeatures 1 High quality steel construction Made from 65 steel material with a black coating to enhance resistance against corrosion ensuring long lasting performance 2 Wide size range Includes 7 common sizes M3 to M10 to accommodate a variety of applications in industries such as automotive electronics and furniture assembly 3 Secures fasteners effectively Provides a spring force that ensures screws and nuts have an enhanced grip and prevent loosening during use 4 Versatile applications Ideal for use in vehicles lawn mowers engines boats industrial machinery and household repairs making it suitable for professionals and DIY enthusiasts alike 5 Organized storage solution Comes in a plastic box with dedicated compartments for each size to facilitate efficient organization and quick access Package Included 60 x M3x9 Washers60 x M4x12 Washers60 x M5x12 Washers50 x M6x14 Washers50 x M8x18 Washers50 x M10x20 Washers20 x Miscellaneous Washers