I have that problem - it does seem to become loose over time/miles. I have just been re-torqueing it. So far, I have not seen a problem doing that. They seem to be made of brass, which is nice I think. Probably less corrosion risk than aluminum. However, they are a bit soft, and I've definitely found shaving from the threading operation/machining inside the shaft. So, not the best quality control. Worth removing, cleaning, reapplying good loctite to, and reassembling to torque. I've also found the solidified blue loctite on all the fasteners is pretty terrible. So, re-torqueing everything will be standard practice for me going forward.