Finding the correct size Split Cotter Pin can be tricky, but in fact it’s really simple!

Split Cotter Pins are always listed by the hole size they are fitting in to. For example, if you had a 4mm hole, you would need a 4mm Split Cotter Pin. The outside diameter of the Pin is always made slightly smaller than the hole size, this is so it can fit into the hole with ease.

To measure the length of a Split Cotter Pin, simply measure from the under the head of the Pin to the end of the SHORTEST leg. If say this measures approx 25mm, you will need a 25mm long Split Cotter Pin.

If you are still having difficulty finding the correct size Cotter Pin, don’t worry, we can help you find exactly what you need. Please don’t hesitate to contact us.

You can buy our Split Cotter Pins online, here is the link: https://springfasteners.co.uk/product-category/engineering-pins/split-cotter-pins/