What are the options for dealing with a stripped side rack mounting point thread as seen in the attached picture. When I put the bolt in it gets to a certain depth and runs up against the stripped threads and then the entire circular unpainted metal threaded hole starts to rotate. The fact that it rotates makes me wonder whether this circular threaded mounting point is meant to be replaceable. Never tapped (threaded?) a new hole before but I suspect the fact that this thing rotates will make it difficult. Any ideas on how to proceed? Thanks a lot for your help.