Upgrade or replace your damaged locking wheel nuts with these Thatcham tested and passed locking wheel nuts. The pack contains 4 locking wheel nuts and a locking wheel nut key adaptor. A common problem with Jaguar locking wheel nuts is the end caps being damaged when being removed with an impact wrench. This results in the security key being unable to remove the locking nut. These replacement locking nuts come with a lifetime guarantee so you will never have to buy another set again. They have been manufactured to IS09001 & QS9000 standards.