Rear derailleur mounting bolt or hanger thread stripped? Having some issue with my SRAM X01 Eagle rear derailleur mounting to the frame idk it won't bolt in with my torque wrench it's very loose? When it comes to drivetrain stuff I'm not experienced enough working with it seems simple issue but idk maybe the bolt is stripped? Or the hanger on the frame is stripped ? Any help appreciated thanks trying to avoid taking to a bike shop.





I think I got it set up right with the tab lined up with hanger and the B-screw
If the bolt spins in the hanger the threads are indeed stripped. The threads on the bolt don't look too badly damaged, so the hanger is where the threads are properly stripped out.

The tops of the threads on teh bolt look a bit worn to me - possible from spinning around inside the damaged hanger threads. I'd replace both the hanger and bolt as a precaution.