The security stud bolt kit is an indispensable component ideal to protect the wheel rims from theft. The set consists of 4 security stud bolts, one for each rim, and 1 special locking tool (socket wrench) for easy fitting and removal of the wheel studs bolts. For maximum protection of the rims, the tool supplied in the kit is the only one that can be used to fit and remove the security stud bolts.