High quality: All products are made of durable nylon, corrosion resistant and wear resistant Flat discs of any size are pre-classified for easy identification and avoidance of losses We have 500 pieces in the most common sizes: M2.5.1:100 piece, M2.5.5.1:100 piece, M3.6.1:100 piece, M4.8.1:50 piece, M5.10.1:50 piece, M6.12.1.2: 50 piece, M8.16.1.4: 1:40 piece, M10.20.2: 10 piece With washers to increase contact area, 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 washers are made of high quality, durable nylon, which is resistant to wear, corrosion and good insulation. Br> Wide range of applications at home or in the office. Perfect for electrical connections to household and commercial appliances, automotive and marine applications. Br> Attention: The material is nylon plastic, not rubber. < Br> Washers are