Flat washers, also known as plain washers, are versatile fasteners used in a huge variety of different projects. These SAE flat washers are designed to be used in conjunction with our 304 stainless steel bolts and threaded rod. They evenly distribute the fastener's load and reduce the surface pressure applied to the fastener. The 18-8 stainless steel washers provide great corrosion resistance that can stand up to harsher environments compared to any of the carbon steel options.