https://articlescad.com/van-ho....ok-locks-fitted-tool
Van Hooklock Van hook locks can provide an extra layer to the security of your vehicle. They are simple to install and work independently of the locking system in your vehicle. They protect the entry points as well as the areas of load. They work by launching a hook-style nut into a bracket mounted on the bodywork of your vehicle. This makes them incredibly difficult to break into or force to open. They are incredibly difficult to pick or tamper with Van deadlocks, sometimes referred to as hook