The MAU MSB009-20 pack includes 20 pieces of 302/304 stainless steel B washers, each measuring .009" thick and 3" x 3" in size. These washers are manufactured from high-quality stainless steel, providing excellent corrosion resistance and durability for various applications. Ideal for automotive and industrial use, these washers ensure a secure fit for bolts and screws, preventing loosening and enhancing the integrity of assemblies. Their precise dimensions and robust construction make them a reliable choice for securing components in demanding environments.