Thanks. The way the nuts for the j-bolts are situated and because they're nylock nuts, they're very inconvenient to remove without a deep socket. With a deep socket, they're very quick and easy, but I figure the average thief won't have a deep socket handy and won't want to spend the time necessary to fight with the awkwardly-placed nuts on both sides for long enough to steal the box. .Great attachment of the box to the rack. If you are going to add footmen loops to the bottom of the box you will be making holes to attach them. Perhaps a few more holes to attach the box to the rack might also be an idea, to secure it from the inside, as the hooks you have attached the box with are easy for another less than honorable person to remove it for you. I am not a thief but to keep things I try to think like one, as in how can I lose this?