50 PCS/Box M5-M14 Copper Metric Washer Sealing Set Solid Copper Flat Ring Crush Washer Kit

1. Made of red copper, it offers excellent electrical conductivity, thermal conductivity, and corrosion resistance.
2. Copper is relatively soft and highly ductile, allowing it to fill microscopic gaps at joints during tightening and effectively prevent leaks of oil, water, and gas.
3. Available in a variety of sizes, including M5, M6, M8, M10, M12, and M14, suitable for sealing fuel tank plugs, engine oil pan drain bolts, and pipe fittings
4. Packaged in a transparent, compartmentalized plastic box with clearly separated sections for easy identification, retrieval, and organized storage
5. Widely used in various maintenance and assembly scenarios, such as automotive repair, mechanical equipment, plumbing, and electrical connections
6. Material: Red copper