Discover the reliability and versatility of our 220 Pcs Copper Flat Washers Kit. This comprehensive washer set includes 9 metric sizes: M5, M6, M8, M10, M12, M14, perfect for a wide range of sealing and plumbing applications. Made from high-quality copper, these washers offer excellent durability and sealing performance, ideal for crush washers, oil plug crush washers, and oil drain plug washers. Perfect for automotive, plumbing, and industrial uses, this copper washer assortment ensures a tight, leak-free seal. The copper crush washer kit is neatly organized in a convenient box, making it easy to find the right size. Whether you need plastic hole plugs, screw hole covers, or pocket hole plugs, this kit has you covered. Enhance your toolbox with this essential copper flat washers set for reliable and efficient performance in all your projects.