Reduction of fan 4020 to 3/8 inch (bent)

Reducer is curved so that the fan does not protrude too much. I uploaded two models and the second model is aligned so that it prints better (towards the mat). You can see this in the picture for one nut, but it works just as well and the nut doesn't fall out.

This is reduction of fan 4020 to 3/8 inch. redukce