Feature: 1. [884 Pcs in Set] The set includes 280 pcs half round head hex socket screws, 300 pcs nuts, 300 pcs washers and 4 pcs hex wrench, to meet your daily need. 2. [Set Specification] The specification of the screw nut and washer are M2 M3 M4 M5, the length of the screw are 8mm, 12mm, 16mm, 20mm. 3. [Stainless Steel Material] Made from premium 304 Stainless Steel, resistant to corrosion, rust and wear, has good toughness and high hardness. 4. [Tight Connection] With certain elasticity and load, the screws resistant to shock, could avoid loosening, keep tight connection. 5. [Long Life] Can be used repeatedly, sturdy and durable, the screws are not easy to deform or bent, can retain color and shape after long term use. Specification: Item Type: Screw Nut Washer Wrench Kit Material: 304 Stainless Steel. Package List: 45 x M5 Washer45 x M4 Washer85 x M3 Washer125 x M2 Washer45 x M5 Nut45 x M4 Nut85 x M3 Nut125 x M2 Nut10 x M5X20 screw10 x M4X20 screw20 x M3X20 screw30 x M2X20 screw10 x M5X16 screw10 x M4X16 screw20 x M3X16 screw30 x M2X16 screw10 x M5X12 screw10 x M4X12 screw20 x M3X12 screw30 x M2X12 screw10 x M5X8 screw10 x M4X8 screw20 x M3X8 screw30 x M2X8 screw4 x Hex Wrench1 x Storage Box