Dimension: ; This copper crush washer assortment includes washers with precise dimensions to fit your specific needs.High-Quality Copper Material: Made from 100% copper, these crush washers offer excellent conductivity and exceptional resistance to corrosion, ensuring long-lasting durability.Superior Seal and Heat Endurance: Compared to steel and rubber washers, these copper washers provide a tighter seal and greater heat endurance, making them ideal for various applications.Enhanced Fastening Support: Designed for use with nuts and bolts, these copper washers offer a larger bearing surface, preventing the nut or bolt head from tearing through the material and ensuring secure fastening.Versatile Applications: These copper crush washers find wide application in various industries, including chemical plants, electricity generating stations, nuclear power stations, electronics, precision instruments, hardware, and more.