Must Have Pro Grade Copper Washer Set 360 Pcs With 10 Metric Sizes M5 M6 M8 M10 M12 M14 Flat Sealing Washers For Oil Drain Plug Automotive Plumbing Hydraulic Fuel And High Temperature Systems

Pro Grade Copper Washer Kit, 360 Pcs in 10 Sizes
✔️ 360 copper washers across M5-M14 in an organized case

This copper washer set is designed for sealing oil drains, fuel lines, hydraulic fittings, and other automotive and industrial connections. Its 100% copper composition offers reliable sealing under high temperature and pressure.

✅ 100% pure copper material with high corrosion resistance
✅ Handles temperatures up to 1083°C for tough engines and systems
✅ 360-piece kit covers M5, M6, M8, M10, M12, M14 sizes in a durable case
✅ Soft copper crush washers seal leaks reliably under high pressure
✅ Organized storage case with labeled dividers keeps sizes ready

💡 What is a copper washer set best used for in automotive sealing applications? Handy for common sealing tasks across engines and machinery. - ideal for oil drain plugs, fuel lines, hydraulic fittings, and other fluid connections - copper washers provide reliable sealing under high temperature and pressure - includes M5-M14 sizes in a clear storage case

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