https://articlescad.com/10-loc....ks-4-vans-hook-lock-
Van Security Hook Locks Van security hook locks offer an additional layer of security from theft. They are not part of the lock system that is provided by the manufacturer and operate using a a high security key. They are a good defence against burglaries that use door peeling, since they attach to the receiver bracket, making it harder to force to open. They can be mounted on the side and rear door of most vans. They are a kind of mechanical deadlocks Van Security hook locks are the most recent in van se