Nylon Washer Set: 500 pcs black flat washers, round spacer washers compatible with M2 M2.5 M3 M4 M5 M6 M8 M10. High Quality: All products are made of durable nylon, corrosion and wear-resistant. Flat washers in all sizes are pre-sorted for easy identification and to prevent loss. Each package contains various sizes - We have 500 pieces in the most common sizes: M2*5*1: 100pcs, M2.5*5*1: 100pcs, M3*6*1: 100pcs, M4*8*1: 50pcs, M5*10*1: 50pcs, M6*12*1.2: 50pcs, M8*16*1.4: 40pcs, M10*20*2: 10 pcs. Use washers to increase the contact surface, reduce pressure, and protect parts and screws. Perfect for electrical connections in household and commercial appliances, automotive and marine applications. Product Description: Premium Quality. These black flat washers are made of durable, high-quality nylon, wear-resistant, corrosion-resistant, and provide good insulation. Wide range of uses at home or on the job. Ideal for electrical connections in household and commercial appliances, automotive and marine applications. Attention: The material is nylon plastic, not rubber. Washers are non-elastic and non-soft sealing rings. Well Classified: A total of 500 pieces in 8 different sizes of flat washers are pre-sorted for easy identification and to prevent loss. The sorting box not only helps to store the washers well, but also to transport and store them easily. Various sizes for different applications: M2*5*1: 100pcs, M2.5*5*1: 100pcs, M3*6*1: 100pcs, M4*8*1: 50pcs, M5*10*1: 50pcs, M6*12*1.2: 50pcs, M8*16*1.4: 40pcs, M10*20*2: 10 pcs