This is a mount for a Microsoft web cam. Its mounted to 20x40mm extrusion. You need to provide hardware to connect the mount to the printers frame but the screw to mount the camera to the mount is just the original screw that held the camera to the factory mount. Using this setup with a Raspberry Pi 3 running OptoPrint.

I am using the Microsoft LifeCam Cinema 720P camera but the LifeCam Studio should work as well.