10-20 to m8 nut adapter for thin threaded z rod

This thing lets you use thinner z rod with your current m8 carriage ends.

This is a test part that I printed but didn't end up testing. The theory is that a thinner z rod would be less likely to cause wobbles in the print if it was non-straight. This piece is the id of a 10-20 coupling nut (yes, I'm american... I know... It's what they have in stores here, so It's what I designed for...) and the od of an 8mm nut. You should be able to
1- print this,
2- press in a 10-20 coupling nut whils