https://posteezy.com/ten-myths....-about-hook-deadlock
Van Hook Deadlocks Van hook deadlocks are mechanical locks that work independently of the vehicle's factory locking system. They have a hook-style bolt that is secured to an receiving bracket, making it harder to gain entry into your vehicle. They are particularly useful in helping to prevent "Peel and steal". They also prevent criminals from taking away your catalytic converter which converts harmful pollutants into less harmful gasses. Hook Locks Van hook deadlocks are operated by a key and function independentl