Flat washers, also known as plain washers, are versatile fasteners used in a huge variety of different projects. These USS flat washers are designed to be used in conjunction with our 316 stainless steel bolts and threaded rod. They evenly distribute the fastener's load and reduce the surface pressure applied to the fastener. The 316 stainless steel washers provide maximum corrosion resistance that can stand up to harsher environments including exposure in environments near saltwater.