7/16″ x 1/2″ x 1-1/4″ Zinc Plated Grade 8 Steel USS Flat Washers
Diameter: 1/2″ Diameter 2: 1-1/4″ Thickness: 5/64″ Material: Steel Finish: Blue Rinsed Zinc Thread Type: USS Hardness: Grade 8 Nominal Size: 7/16″ Type: Flat Washer 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.