The Euclid 4-11/32" Drive Axle Spindle Lock Washer is designed to fit on axles. It is made of high-strength steel which makes it resistant to wear and tear. The unique design of the washer allows it to lock onto the spindle of the axle, preventing it from rotating or coming loose. This ensures the safe and efficient operation of heavy duty vehicles. It is a must-have for any vehicle that needs to be kept in top condition. FleetPride is your First Click in Heavy Duty®.