The Hillman Group 290030 Fender Zinc Washers, 5/16-Inch x 1-5/8-Inch, 100-Pack Product Description This fender washer is a flat washer with a thinner body and an increased outer diameter offering greater surface bearing. They are chosen when a large outer diameter is required for an increased bearing surface and surface load reduction. Designed for auto body repair, fender washers are commonly used in sheet metal work, plumbing and electrical applications where a large washer diameter is needed. From the Manufacturer This fender washer is a flat washer with a thinner body and an increased outer diameter offering greater surface bearing. They are chosen when a large outer diameter is required for an increased bearing surface and surface load reduction. Designed for auto body repair, fender washers are commonly used in sheet metal work, plumbing and electrical applications where a large washer diameter is needed. Features Fender washers have a larger surface area than standard flat washers Prevents a nut, bolt or screw from pulling through the material Zinc plated Country of Origin: China USA SHIPPING estimates delivery times and we work to get your item to you as quickly as possible and within those times, but please know it may take slightly longer than the estimate.