In removing all the plastic on my bike to try to find The Rattle, I noticed the underside of the ignition switch bolts. At first glance (with both fading daylight and eyesight), thay appear to be Allen (hex) head, but when I tried to find a correct size to check the bolts for tightness, nothing metric or SAE fit. Got out the flashlight and magnifying glass to remedy the above two deficiencies, and the inside of the heads look either completely buggered up, or they are some, unfamiliar to me, security fastener. Instead of the "bite lines" running axially with the bolt, as the inside of an Allen head would, these "bite lines" appear to run diagonally, and are very shallow. Are mine just buggered up off the assembly line, or are these meant to take some security bit, or is the inside meant to shear off, to thwart removal? In any case, I don't look forward to ever have to remove the switch!