Hey /p/, can anyone tell me what type of screw this is? It’s on a SmallRig baseplate

Part of a camera rig/baseplate that’s been mounted for a long time

I might have replaced the original screw at some point

Already tried Nimbus and Torx in various sizes, but none fit


I’ve attached a photo — please take a look and let me know if you’ve seen this type of screw before or know the exact thread/size. Thanks!