Pro-style Picture Hook

This is a hook I designed for a friend of mine that hangs paintings for show. It is designed to hook slide over a vertical metal bar to hold the cable from the back of a picture frame.

The knob should be printed vertically at at most, 0.2 mm layer height. The hook should be printed on it side and I do it with thick shells and 0.3 layer height.

Both parts will need to be cleaned up with the right size tap & die to work properly. I also plan to coat the inside, back-face with Plasti-dip for better grip.