10mm x 18mm Zinc Plated Class 8 Steel Flat WashersType: Flat Washers
Diameter 2: 18mm
Hardness: Class 8
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.