2 x 2-1/8 x 4-1/2 Zinc Plated Grade 2 Steel USS Flat Washers (Box of 15)
Diameter: 2-1/8Diameter 2: 4-1/2Thickness: 3/16Material: SteelFinish: ZincThread Type: USSHardness: Grade 2Nominal Size: 2Type: Flat WasherBox of 15.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.