Nominal Size: #4
Inside Diameter: 1/8"
Outside Diameter: 5/16"
Thickness: 1/32"
Material: Aluminum
Thread Type: SAE
Type: Flat Washer
Box of 48.
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.
