Description

Diameter: 5/16″
Diameter 2: 7/8″
Thickness: 5/64″
Material: Steel
Finish: Plain
Thread Type: USS
Hardness: Grade 2
Nominal Size: 5/16″
Type: Flat Washer

Box of 435.

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.