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Is a Van Hook Lock Worth the Investment? A van hook lock is an effective method to increase the security of your van. Attached to the door or connecting panel, they operate independently of the manufacturer's locking mechanism and can only be operated by keys that are under the control of the driver. In contrast to straight bolt deadlocks, these lock using a hook-style bolt which catches into the receiver keep, providing premium vehicle security. High-Security Locks Security is a major concern for business owners