Diameter: 1" and 2-1/2"
Thickness: 11/64"
Material: Steel
Finish: Hot Dip Galvanized
Thread Type: USS
Hardness: Grade 2
Nominall Size: 1"
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.