M8 Enclosed Wing Nyloc Nut
As I'm unable to read properly I had to find out -after the print- that DartKrafts' design is for a normal nut and not a nyloc nut (or self-locking nut).
So I remixed it and added a mm in hight to fit my nyloc nut.
The space for the nut is now 7.5mm instead of 6.5mm.
Some nyloc nuts are only 6.3mm high. Use DartKrafts' design then!
In Bambu slicer with 0.2mm layer hight pause must be at layer 90.