If you install a starnut you will strip the epoxy/resin layer off the carbon fiber and SERIOUSLY compromise the integrity of the fork. Its like folding heavy card stock... if you put a light cut in it, it folds very easily but if you don't score it, it is very difficult to fold.

And YES a torqure wrench is ESSENTIAL. No offense, it sounds like you don't know what you are doing and don't have the right tools... take it to an experienced shop and don't risk ruining your expensive fork.