1/2 x 9/16 x 1-3/8 Zinc Plated Grade 2 Steel USS Flat Washers FLWSRS-193

Diameter: 9/16 Diameter 2: 1-3/8 Thickness: 7/64 Material: Steel Finish: Zinc Thread Type: USS Hardness: Grade 2 Nominal Size: 1/2 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.