You have few options...
1. Dremel or file channels for the scews.
2. 'Glue' the adpaters in place. Try green Loctite or a little JB weld. If you go with JB weld I'd only use it in a few spots, maybe a few dabs every 90 degrees.
Last edited by miamijim; 11-18-09 at 12:27 PM.