I am changing the head gasket in my 1999 (build 9/98) Contour . It is the 2.0 Zetec engine . When tearing down I rounded off one the cam bearing cap bolt head . I had to grind the head off the bolt to finish the job . I don't seem to be able to find the bolt size or specs . I think I could replace with a hex headed bolt if I can find the size . I am thinking it is 6mm but what thread ? Thanks