Now that I looked at some other pictures, im starting to think the machine screw was an allan key, i dont remember what it was because it fell out when i was at my uncles gravil pit, and i didnt notice it was missing until my cousin pointed it out to me. So what I did was I took one of those screws from that little white protective plastic wall on my rear disk break, and i tried it, and it fit, so i kept it in there. So thats why i thought it was a phillips, but im quite sure now that it was an allan key.