- Premium Copper Construction: This 280-piece washer assortment kit is crafted from high-quality copper, ensuring superior electrical and thermal conductivity. The excellent properties of copper make these washers ideal for sealing and electrical connections, providing reliable performance for your projects. - Versatile Washers for Multiple Applications: This copper washer set serves various functions, including spacers, wear pads, preload devices, locking mechanisms, and vibration reduction solutions. Whether you are repairing, assembling, or installing, these flat washers are essential for maintaining stability and preventing surface damage. - Extensive Size Range for Compatibility: Featuring 12 different sizes, including M5, M6, M8, M10, M12, and M20, this washer kit is compatible with screws, bolts, fasteners, and other hardware. The diverse size options make it suitable for a wide range of mechanical, automotive, and household applications, ensuring you have the right washer for every job. - Durable Design for Long-lasting Performance: Made from hard copper, these washers are built to withstand years of use. The set includes washers designed for sealing, leak prevention, and friction reduction, making them essential for the longevity of automotive, plumbing, and machinery projects. - Practical Use Scenarios: Use these washers in automotive repairs to ensure secure connections, in plumbing to prevent leaks, or in machinery installations to reduce vibration and protect surfaces. Their versatility and durability make them a reliable choice for professionals and DIY enthusiasts alike.