Lock washers are designed to keep screws and bolts from loosening, especially as a result of vibration or changes in temperature. Zinc-plated finish provides corrosion resistance. Place in-between the head of the screw or bolt and the material being fastened. For use with any indoor or outdoor project where corrosion and potential loosing from vibration is a concern. The split ends grip the material surface to prevent loosening.

Lock washers are designed to keep screws and bolts from loosening, especially as a result of vibration or changes in temperature. Zinc-plated finish provides corrosion resistance. Place in-between the head of the screw or bolt and the material being fastened. For use with any indoor or outdoor project where corrosion and potential loosing from vibration is a concern. The split ends grip the material surface to prevent loosening.