I designed this mount to attach a webcam to the pole of the wire shelving rack I have my printer on. It uses two M3x12 screws and M3 nuts. The mounting hole is sized for a standard ¼-20 tripod mounting screw.
Update 5-16-22
Reuploaded in the correct printing orientation and added STEP file for you to easily modify if needed.
The author hasn't provided the model origin yet.