You need to doa helical sweep. To make the threads accurate you need to do your length of your trajactoryas needed. This needs to be drawn at 1' 47". The youset the pitch at the pitch of one thread. When it goes back into the sketcher make the profile either to look good or usea thread data table to get the correct thread shape.This a pain if you don't do it much, but is how I had to make my threads for pro man but I also had to put a datum curve on it as well.