5/16″ x 3/4″ Fiber Washers (50 pcs.)
Diameter: 5/16″ Diameter 2: 3/4″ Thickness: 1/16″ Material: Fiber Nominal Size: 5/16″ Style: Fiber Type: Flat Washer Box of 50. A flat washer is a thin, usually round, plate with a hole in the middle that is normally used to distribute the load of a threaded fastener. USS flat washers have a large, wider body. SAE flat washers are machined to a tighter specification and have a smaller outside diameter.