The purpose for a lock washer is to prevent threaded fasteners from loosening by creating friction between the fastener and the mounting surface.

Diameter: 3/8"
Diameter 2: 11/16"
Thickness: 3/32"
Material: Steel
Finish: Hot Dip Galvanized
Hardness: Grade 2
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts

Diameter: 1/2"
Diameter 2: 7/8"
Thickness: 1/8"
Material: Steel
Finish: Hot Dip Galvanized
Hardness: Grade 2
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts

Diameter: 5/16"
Diameter 2: 19/32"
Thickness: 3/32"
Material: Steel
Finish: Hot Dip Galvanized
Hardness: Grade 2
Style: Medium Split
Type: Lock Washer
Application: Nuts and Bolts