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Van Deadlocks and Hook Locks Van deadlocks operate independently from the van manufacturer's internal locking system. They are installed to your vehicle's doors that connect panel and are operated with an external key with high-security. The scourge of door bent doors is costing UK tradespeople millions of pounds in stolen tools and their contents. The new L4V high hook lock kit as well as anti-peel was designed to address this problem. Dead Locks Van deadlocks are an excellent method of protecting your tools