I just couldn't get a good look from the back at the hole in the metal but, I took the bezel off. Those 2 screws are just short & screw directly into the plastic dash. The switch comes in from the backside of the metal & I could see one of what looked more like a bolt-type head, screw. You couldn't replace the switch without the plastic dash being out of the way first because there's no way to get to the screws that hold it. Anyway, the switch is definitely bolted to the metal and there has to be at least a 3/4- 1" hole for the lever to come through.