90° swivel for camera mount

I have some 120 MF to scan and the orientation of the NS 120 scanner for my 6x4.5 negatives is partially blocked by the vertical arm. I found an inexpensive 90° hinge mount that isn’t perfect but was a good start. I needed to add a second screw to create some stability so that the amount wouldn’t twist once my camera was on. But it was easy to just use a self tapping metal screw to accomplish this, and now I’m able to swivel the camera 90° to change the orientation. Amazon.com : NEEWER Mini Foldable L Plate Accessory Mount Adapter with 1/4" Screws, Detachable Anti Twist Pin, Compatible with SmallRig Camera Cage, LED Light, Action Camera, Wireless Video Transmitter, UA081 : Electronics