Internal lock washer

Internal shakeproof from Thomas Potter Ltd

A lock washer (sometimes referred to as a shakeproof washer) works by the teeth of the washer cutting into either the material the fastener is entering, the fastener itself or both.

The internal type features teeth on the inside.

When the washer will show, the hidden teeth make for a more attractive finish.

Available in self colour or zinc plated steel and also phosphor bronze.

Core Products