Rolling Packout Wall Mount

This idea was given to me by someone in a Milwaukee Packout group that I'm a part of on Facebook. He is also the same person that tested this and provided the pictures for me since I didn't have a rolling box to test this on (Thanks Eric!). This is a hook that is designed to use standard drywall screws to attach the walls of an enclosed trailer or van to keep your Packout stack from rolling or sliding. I would recommend using 2 of these, one on either end of the inside part of the handle