Upgrade your repair toolkit with this 400/300/100PCS Copper Washer Gasket Nut and Bolt Assortment Kit, designed for precision sealing, durability, and professional-grade performance. Whether you're working on automotive repairs, plumbing projects, or DIY home fixes, this all-in-one copper washer set ensures you always have the right size on hand for a secure, leak-free seal.
Crafted from high-quality solid copper, these washers offer excellent corrosion resistance, strong conductivity, and long-lasting durability. The natural malleability of copper allows each washer to form a tight, reliable seal that helps prevent leaks, reduce vibration, and improve overall connection stability. Perfect for sump plugs, hydraulic fittings, fuel lines, and water systems, this kit is built for both professionals and everyday DIY users.
The flat ring seal design ensures even pressure distribution, helping to create a consistent and dependable seal across a wide range of applications. From automotive sump plug sealing to plumbing pipe fittings and mechanical maintenance, these washers deliver reliable performance every time.
Neatly organized in a storage box, the assortment includes multiple sizes (M5–M14), making it easy to quickly find the exact washer you need. No more searching or guessing—everything is sorted, accessible, and ready for use whenever your project demands it.
Strong, versatile, and essential for any workshop, this copper washer kit is the perfect companion for repair work, maintenance, and precision sealing tasks.
