High Quality: All products are made of tough nylon, corrosion resistant and wear resistant Flat discs of any size are pre-classified for easy identification and avoidance of loss Each pack contains different sizes - We have 500 pieces in the most common sizes: M2 * 5 * 1: 100 pieces, M2.5 * 5 * 1: 100 pieces, M3 * 6 * 1: 100 pieces, M4 * 8 * 1: 50 pieces, M5 * 10 * 1: 50 pieces, M6 * 12 * 1.2: 50 pieces, M8 * 16 * 1.4: 1: 40 pieces, M10 * 20 * 2: 10 pieces < / li> With washers to increase the contact surface, reduce pressure and protect parts and screws. Perfect for electrical connections to household and commercial appliances, automotive and marine applications. Why choose our products? Superior Quality These black flat washers are made of high quality durable nylon which is resistant to wear, corrosion and good insulation. Wide range of home or office uses. Perfect for electrical connections to household and commercial appliances, automotive and marine applications. Attention: The