Again, it's a "rubbing" problem with micrometers...they have a ratchet for a reason.
If you are measuring a feeler gauge (say) with a micrometer, some people "clamp" the feeler with the micrometer, then slide it up and down, wearing both.
Supposed to unclamp, reposition, then wind back down with the ratchet to where the next measurement is taken...no sliding, no sliding wear.
Always use the ratchet to minimise wear on the loaded face of the threads.
Losing a zero on a micrometer is adjustable with the wrench provided.