Sounds like either
your keel bolts are broken (the bolts shouldn't turn when you are torquing the nuts) or Hunter drills and taps your iron keel, and the threads are stripped. Either way, you have problems, and as a previous poster said:Break Out Another Thousand.You need to get this on the hard to tighten the hull - keel joint, then as a minimum, you need to install new keel bolts. If Hynter uses a lead keel, you can use Lag Bolts (ala Catalina). However, I believe that your keel is iron (check with a magnet). If this is the case, you will need to drill and tap your keel, then install a treeaded rod / nut combination.To make certain that your keel is snug to the hull, the boat must be sitting on the keel that is on the hard (or perhaps a cradle) with at least 75% of the weight supported by the keel.Once new bolts are in, chip the hull - keel joint, back it with a sealant (5200 will work, but you may want to use 4200), fair in teh joint, and tape over the fairing with glass tape / resin.It's probably best to leave this to an expert, so BOAT.SteveAlchemist C-320