Please note that the measurements are of the internal diameter of the collar. In some circumstances, although rare you may struggle to fit these if you have a pin which has been painted,galvanised or has rust. Collars are all new and unused, but some may have slight surface rust.

We recommend measuring your pin and to check it is no larger than the internal diameter and also cleaning off any excess for this to fit, alternatively if your pin is still large we would recommend drilling out the collar slightly