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What is a Hook Lock Van? A hook lock van is a mechanical form of deadlock operating independently from the locking system of your manufacturer that is fitted to the door and connecting panel with a hook style bolt which connects to a bracket for receiving offering next level security. These locks can be identical to the other van locks, meaning that you only need one key for the entire set. They can be outfitted with lock-shields to protect the cylinders from attacks by crowbars. Hook L