Sellock Pins

A Sellock pin, (Also known as a Spring pin, Roll pin and Tension pin, is used to secure the position of two or more parts of a machine relative to each other.

The diameter is normally slightly larger than the hole it is meant to go into, they have chamfered ends so that the pin is compressed into the hole to ensure a secure fit.

The main difference between a Cotter and a Sellock pin is that a Cotter pin is able to be bent to prevent it from falling out while the Sellock pin is sprung to stay in the inserted holes.

We predominantly stock metric Sellock pins, but if you require a different size to what's listed, give us a shout!