The FLAT WASHER SAE ZINC 5/16" THRU HARDENED is designed for strength and durability, making it suitable for industrial and automotive applications. Each washer is made from high-grade materials with a zinc finish to resist corrosion and enhance longevity. With a generous bulk count of 8,000, this product is perfect for large-scale projects requiring reliable fastener solutions. These washers ensure even load distribution and prevent damage to surfaces, making them an essential component for any assembly.