Lockable wheel bolts specially developed for Volvo Cars, which gives improved safety. The lock pattern is located against the middle on the lockable bolts and is therefore difficult to reach with a screwdriver, for example. The top of the lockable bolt rotates and is therefore very difficult to loosen without the right wrench. A solid connection between wrench and bolt facilitates installation and removal, and in principle eliminates the risk of crooked tightening. The steel bolts are galvanized and have very good corrosion protection. Together with plastic caps, they provide an attractive appearance that matches the wheel. The design is similar to a standard bolt but sufficiently different to deter potential thieves. If a lockable bolt cannot be loosened for some reason it has to be cut apart. Due to the bolt's high safety level this is the only recommended service solution. A spare wrench cannot be ordered, instead the recommendation is a new kit with lockable bolts if the customer has lost their wrench. Advantages: Secure theft protection that makes it much more difficult to open the bolt without a wrench. The design makes for easy installation and removal. Effective rust protection. Good-looking design resembling a standard bolt. Weight-optimized to avoid imbalance.