Made some curtain rod ends for the doorway of my office. Uses 1/2" EMT for the rod and 1/8" screws to connect to wall.
Included the DXF I made while making it in case that is helpful, and put a PDF too with about the right spacing from the top of the page so you can just put that up against the top of a doorway entry as a drilling template.
The author hasn't provided the model origin yet.