Since this is a composite stem, I'm assuming it uses metal threaded inserts (probably alum alloy). Is is possible the threads are actually Ok but the inserts are the problem? Specifically, maybe the inserts debonded from the carbon and are now spinning when you try to tighten the bolts. If that's the case, seems like a warranty claim could be made.hippie_rn said:yeah, its the threads in the stem that stripped.
Ok, that narrows it down to actual thread damage. The fact the insert has a thicker wall (~1/8") sounds encouraging. However, that may be misleading since the insert could have an end flange whereas the body is much thinner like this:hippie_rn said:alright- yes there is an insert, yes the insert is stripped (not spinning or debonded). still, what i can see of the threads, they dont look too bad. ill give it a good degreasing and try a new bolt, maybe get lucky. im still wondering though if this could be retapped if need be. the insert looks to be close to 1/8" thick