The bolts you describe are designed to have some play. As a result the lock nut at the end does not get tightened more than a few threads. When you get the chance, a few photos would be helpful. (
http://www.trailmanorowners.com/foru...ad.php?t=16117)
See if these photos help in making sure the bolts are properly installed:
http://www.trailmanorowners.com/foru...php?albumid=66
Dick