Features: High quality: Made of 304 stainless steel material with good corrosion resistance. Application: For electrical connections for household and commercial appliances, automobiles and ships with threaded power supplies Versatile: Designed to disperse screw-fastened loads and prevent loosening in industry, shops, deck and walled-buildings, automobiles and household appliances Distributed pressure: Highly compatible with screws, nuts of the same size and with a strong bearing face that prevents the nut head from tearing from the material. Quantity: 600 flat washers in one box. Notice: 1.Actual color may be slightly different from the image due to different light effect 2.Please allow 1-3cm deviation due to manual measurement Material:304 Stainless Size: M-2x5x0.3mm ----------------------- 100 pieces M-2.5x6x0.5mm --------------------- 100 pieces M3x7x0.5mm ------------------------ 100 pieces M4x9x0.8mm ------------------------ 100 pieces M5x10x1.0mm ----------------------- 60 pieces M6x12x1.5mm ----------------------- 60 pieces M8x16x1.5mm ----------------------- 50 pieces M10x20x1.5mm ---------------------- 20 pieces M12x24x2.0mm ---------------------- 10 pieces Package List: 600 Pcs*Flat Washers