Material : Made from high-quality copper, these flat washers offer superior conductivity and corrosion resistance. The tight gaskets provide better heat resistance compared to traditional steel and rubber washers, ensuring longevity and reliability. Performance : Our copper washers are engineered for exceptional durability and long-term use. They are ideal for applications involving water, fuel, and hydraulic systems, effectively preventing leakage and ensuring insulation. This design also minimizes loosening and maintains consistent pressure, making them a reliable choice for various projects. Excellent Packaging : The set includes a variety of sizes to accommodate your needs: - M591: 35 pcs - M6101: 30 pcs - M6121: 30 pcs - M8131: 30 pcs - M1014131: 30 pcs - M10131: 30 pcs - M121: 25 pcs - Additional 15 pcs included Applications : - Automotive : Use these washers in fuel and hydraulic lines to prevent leaks and ensure secure connections. - Plumbing : Ideal for water systems, ensuring a tight seal that prevents water loss. - Industrial Equipment : Suitable for various machinery, maintaining pressure and integrity in hydraulic systems. With their combination of high-performance material and versatile sizing, these copper flat washers are essential for any repair or assembly project, ensuring a secure and leak-free fit in multiple applications.