So this is connected to my other download but this is just a simple cap for the end of a cross headed screw. This one was for a 5mm screw, you may need to size it up or down for your usage. I secured the cap to the screw with some double sided tape and put a small hole in for the peg so that it wasn't a permanent solution. Just tidies up the end of the screw for my application, which was to hang a calendar off it.