If you don't have a closet like me, print these off and attach them to a wall.
The inner diameter of the half circle is about 5/8". Use your math skills to make the perfect mount for your dowel or rod.
HRM RevA comes with a new feature, countersunk bolt/screw holes.
This part was made with Tinkercad. Edit the part online at: https://tinkercad.com/p/acc012bdf2d832bc