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