#8 x 3/8 x .093 Flat Washer Nylon is a flat washer used to distribute the load of a screw or bolt evenly over a surface. It is made of nylon, which is a strong and durable material that is resistant to corrosion. The washer has an outer diameter of 3/8 inches and an inner diameter of #8. It is .093 inches thick. This washer is ideal for use in a variety of applications, including automotive, marine, and industrial.