Midwest Fastener 5/16 in. SAE Flat Washer

The Midwest Fastener 5/16 in. SAE Flat Washer is designed to distribute the load of a threaded fastener such as a bolt or screw while preventing damage to the mating surface. Constructed from durable copper, this washer offers excellent corrosion resistance and electrical conductivity for a variety of automotive, plumbing, and general hardware applications. Built to meet standard SAE specifications, this flat washer delivers reliable performance and tight sealing in professional and DIY projects alike. Its quality construction ensures lasting durability and consistent fitment across demanding fastening tasks.