Feature:1. The screw fittings have accurate threads and are not easy to slip or break during use.2. Nylon screws have the characteristics of insulation, nonmagnetic, thermal insulation and corrosion resistance.3. A variety of different sizes of accessories can meet your different work needs.4. All the screws, nuts and washers are stored in a separate box, so you can distinguish them easily and avoid mixing them together.5. Suitable for communication, electroplating, office equipment, electronics and other industries.Specification:Item Type: Screw SetMaterial: NylonColour: BlackScrew Nut Specifications: M2 M2.5 M3 M4 M5Gasket Thickness: Approx. 1mm / 0.04in.Package List:30 x M2(5 x 4mm Screw, 5 x 12mm Screw, 10 x Washer, 10 x Nut)30 x M2.5(5 x 6mm Screw, 5 x 12mm Screw, 10 x Washer, 10 x Nut)30 x M3(5 x 6mm Screw, 5 x 12mm Screw, 10 x Washer, 10 x Nut)30 x M4(5 x 8mm Screw, 5 x 16mm Screw, 10 x Washer, 10 x Nut)30 x M5(5 x 10mm Screw, 5 x 20mm Screw, 10 x Washer, 10 x Nut)