https://squareblogs.net/advice....queen71/ten-hook-loc
https://articlescad.com/the-ul....timate-guide-to-van-
Van Hook Lock A van hook lock could be a security feature for commercial vehicles. Similar to a deadlock with a hook-style bolt catching into the bracket for receiving. They are a popular choice for a wide range of van models and manufacturers. They are controlled with a high security key and work independently of the locking system installed by the manufacturer. They also guard the door from twisting and spreading. High-security