Lock washers are used when keeping a nut and washer securely held together. These fasteners also resist loosing caused by vibration and corrosion.
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