Product Description Material: Nylon Plastic Specifications: M2, M2.5, M3, M4, M5, M6, M8, M10, M12 Quantity: 700pcs Package Contents: 700 * Black Nylon Washer 1.【Made of durable nylon】 : Light weight compared to plastic rubber, corrosion resistance, good insulation, environmentally friendly materials. 2.【Comes with a plastic box】 : Contains 9 sizes of the most commonly used nylon washers. Type: M2 M2.5 M3 M4 M5 M6 M8 M10 M12 . Has good impact resistance and energy absorption properties. 3.【Excellent choice】 : Compared with metal gaskets, nylon washers have excellent insulation, corrosion resistance, heat insulation and non-magnetic properties, and light weight. 4.【General purpose】 Increase the contact area of the bolt or nut with the work surface to avoid wear of the work surface. 5.【Versatile seal】: Widely used in various fields such as semiconductor, automobile, aerospace and interior decoration. For use mainly in electrical connections, household and commercial appliances,