I got a new PrintDry filament dryer system and the drying chamber filament outlet holes needed a Bowden connector. Here it is. The F360 file's there too.

I printed in the Prusa Black PETG filament.
On the Bolt, I printed 0.20mm layer heights up until 12.4mm where I switched to 0.10mm to add detail to the threads.
On the Nut, I printed 0.10 layer heights all the way up.

Amazingly my none of my threads have needed any dressing. My extruder's fairly well calibrated.

Prusa

i3 MK3

No

No

0.10mm for threads. 0.20mm for non threads.

25%

On the bolt, I used S3D's multiple-process feature to do 0.10mm layer height on the threaded parts, and 0.20mm on the rest.