Shakeproof Lock Washers

A Shakeproof washer is used as a way to lock nuts in place and withstand movement caused by the environment and vibrations. Therefore, a shakeproof washer makes the fastening more secure and reliable.

Washers are also important for preventing galvanic corrosion, particularly by insulating steel screws from aluminium surfaces.

Internal Teeth

The locking teeth are on the inside, leaving a rounded, external edge.

External Teeth

The locking teeth are on the outside, leaving a rounded, internal edge

Overlapping Teeth

As the teeth overlap, when the fastener is tightened the teeth are harder to squash, so a deeper indent occurs, creating a more secure lock. These are best used when the joint is intended to be permanent.