Product Details: The Euclid 2-41/64" Axle Spindle Lock Washer with Set Screw is designed to ensure the safe and efficient operation of heavy duty vehicles. This lock washer is made of high-strength steel, making it resistant to wear and tear. The unique design of this lock washer allows it to lock onto the spindle of the axle, preventing it from rotating or coming loose. This lock washer is a must-have for any heavy duty vehicle, ensuring its safe and reliable operation. FleetPride is your First Click in Heavy Duty®.