Copper Sealing Washers Set 350 Pcs 10 Sizes M5-M14 for Auto and Motorcycle

Copper Flat Washer Kit: 350 Pcs in 10 Sizes M5-M14
✔️ 350-piece copper washer set, 10 sizes (M5-M14), clear storage case

Our copper sealing washers are flat, red copper pieces designed to seal threaded joints, prevent leaks, and handle high temperatures. This set is perfect for auto, motorcycle, electrical, marine, and DIY projects.

✅ Material: high-grade red copper for tight seals and high-temperature resistance
✅ Sizes included: M5, M6, M8, M10, M12, M14
✅ Includes 350 washers and durable transparent storage case with size chart
✅ Excellent conductivity and anti-corrosion properties for long life
✅ Wide applications: automotive, industrial, electrical, marine, DIY

💡 What is a copper sealing washer set used for in automotive and mechanical work? A handy kit for sealing threaded joints and preventing leaks in high-temp environments.
- Handy for sealing threaded joints in engines and machinery
- Distributes load to prevent leaks and loosening on fasteners
- Copper's conductivity and corrosion resistance help in high-temp environments
- Stored in the included storage case for quick access