While designing a replacement shower head I needed to design a threaded nipple to insert the shower head into the hose. I designed this threaded coupler using the Freecad ThreadProfile workbench. You can modify this model as you like or just slap this nipple on you next project using an assembly workbench or something.
Print at 0.2 mm layer height at most.
Dimensions are:
14mm Diameter
2mm Pitch
15mm Height
Happy printing.
The author marked this model as their own original creation.