Never had a problem with the sockets. I bolted the rails to a drawer in my three drawer tool box. Only works for standard depth, but I don't carry deeps on the trail, too heavy and unnecessary. Keep the box secure and the sockets never move. I've got one rail each 1/4, 3/8 and 1/2. The 4 deeps I do carry fit my wheels (different sizes front & rear), my u-bolts and something else I can't remember.... they're bolted under the hood with all-thread (all-thread rocks LOL).
Totally Twisted and Broke makes me a saaaad Panda
"You can almost see the dismay on Phil, Paul & Bob's faces when Trautwig is talking....and the pause in their voices after he stops....after which they pick-up the pieces of his non-sensical commentary and continue with their telling of the story that is the Tour de France! "