I just checked my own Razzle out, it looks like a generic small self tapping screw, possibly a wood screw, but more than likely a metal screw.
Dean seems to use whatever is handy and cheap that works very well, including Phillips head wood screws. In one instance I saw a Poz Drive head screw on one Razzle when dean was showing about three off at a photographic flea market in Melbourne, maybe that one was going to Europe where Poz-Drive screws are used a lot more than in Australia.
I'm assuming your camera has the cable release holder on the front left side where your left hand can press the shutter release via the cable. On original 110B cameras there is nothing there as far as I know. I could be wrong though.