Great Planes #8 Lock Washers

Great Planes' Lock Washers are incredibly effective protection against vibrat-
ion-loosened hardware and related damage. The washers feature a split design
digs into wood and holds metal fasteners tight to prevent screws from backing
out due to vibration. The washers have a special Zinc plating that resists
corrosion and rust.

SPECS: Inside Diameter: .170" (4.3mm)
Outside Diameter: .291" (7.3mm)