The Hillman Steel, Zinc-plated Fender Washers are flat washers with a thinner body and an increased outer diameter. They are chosen when a large outer diameter is required for an increased bearing surface and surface load reduction - the wider circumference is designed to disperse pressure. These fender washers are commonly used in sheet metal work, plumbing and electrical applications. The washers also prevent a nut, bolt, or screw of the same finish and size from pulling through material. The steel material offers durability and reliability while the zinc plating offers moderate protection against rust and corrosion. 0.07 lb.