Size: M2: 5*1 (100 pcs) M2.5: 5*1 (100 pcs) M3: 6*1 (100 pcs) M4: 8*1 (50 pcs) M5: 10*1 (50 pcs) M6: 12*1.2 (50 pcs) M8: 16*1.4 (40 pcs) M10 (10 pcs) Color: Black Specifications: 1. Washer Set: Nylon washers in various sizes M2, M2.5, M3, M4, M5, M6, M8, M10 are suitable for screws and bolts widely used in industrial applications to meet a variety of needs. 2. Washers are made of durable nylon material, offering good toughness, abrasion resistance, electrical insulation, and environmental friendliness. 3. Well-made construction: Insulated washers provide stable performance and are resistant to air, water, and temperature changes. Flat washers help distribute load and reduce friction. 4. Plastic storage box included: Pre-sorted by size for easy identification and protection against loss. Convenient for organization and use. 5. Wide range of applications: Ideal for electrical connections in household and commercial appliances, automotive and marine equipment, workshops, industrial maintenance, doors, windows, appliances, warehouses, pumps, and drain plugs. Includes: 500 pcs washers