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Is a Van Hook Lock Worth the Investment? A van hook lock is an effective method of increasing the security of your van. It is attached to the door or connecting panel, they operate independently of the locking mechanism and can be operated with keys under the full control of the driver. These deadlocks differ from straight bolt deadlocks because they lock with a hook-style bolt that is snared in a receiver keep. This provides the highest level of security for your vehicle. High-Security Locks As the world around us becomes more crowded and hostile,