Hi, I have seen this type of damage before though not in a wheel hub. Being that the holes are blind holes, if there is an excessive amount of sealant in the hole when the bolt or screw is tightened there is not enough space and you basically(spelling?) created a hydraulic ram. Something has to give and since the sealant can not travel back up the threads it deforms the metal. I actually broke part of a two piece valve cover because of this. The tech that worked on the engine before me used too much and I did not check the holes before I installed it. $200 part broken that the shop had to eat and my <img src="/forums/images/graemlins/butwiggle.gif" alt="" /> chewed out.