The Euclid 3-1/4" Drive Axle Spindle Lock Washer is designed to fit on axles with a diameter of 4.75". This washer is designed 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. The washer is made of high strength steel, making it resistant to wear and tear and corrosion. This washer is the perfect solution for keeping your axle secure and your vehicle running smoothly. FleetPride is your First Click in Heavy Duty®.