Features： 1、Usage: Hexagonal head bolt washer and nut kit can perfectly fasten connecting parts. Easy to install, most suitable for parts with frequent assembly and disassembly. 2、Function: Nuts and flat washers expand the contact area and reduce pressure to protect bolts and parts. 3、High Quality: The compact and uniform bolt thread is not easy to deform and slide during rolling and installation. 4、304 Stainless Steel: Using high quality 304 stainless steel, high strength, can be used in harsh environments such as high temperature, cold weather, and high humidity. 5、Advantage: Screws nuts washer kit has superior rust resistance and excellent oxidation resistance, which can ensure long term use. Specification： Item Type: Screws Nuts Assortment Kit  Material: 304 Stainless Steel Surface Treatment: Wash Bright Standard Type: German Standard Product Category: Bolts, Gaskets, Nuts Size: M2, M3 Product Accessories: Hex Wrench Application: Automobile industry, cars, trucks, buses, construction machinery, wind power generation equipment, agricultural machinery, foundry industry, drilling equipment, ship industry, mining equipment, public facilities, rail traffic. Function: It is a part that closely connects mechanical equipment. The gasket is to increase the contact area, reduce the pressure, prevent loosening, and protect the parts and screws Package List： 10 x M2x4mm  10 x M2x6mm  10 x M2x8mm  10 x M2x12mm 10 x M2x16mm 55 x M2 Gasket 55 x M3 Nut 10 x M3x6mm 10 x M3x8mm 10 x M3x12mm 55 x M3 Gasket 55 x M2 Nut   10 x M3x16mm  10 x M3x20mm 2 x Wrench 1 x Storage Box