I encountered this problem. The bolt won't tighten any further, I don't want to damage the already bad thread even more. No idea what to do now. I don't have any thread cutting tools.
I took the frame to be painted and so I can't help you....what I noticed instead is that the front thru axle is a bit hard to screw in: has anyone noticed the same thing?
It will probably be enough to apply a bit of grease to solve the problem, but before risking ruining the thread I'll ask you too, thanks!
About grease: since this is my first experience in frame assembly, what type of grease do you recommend for the headset, bottom bracket, thru axles, seatpost clamp?
Many have suggested white lithium grease, in some video tutorials instead I saw that they use pink/red or green grease...which one do you suggest?
Thanks