This can all be done from ouside the hull? I tried to loosen the screws- they did not budge. once the screws are out the thru hull piece will come out?
You could use one of these to remove the stripped screws - work like a champ - I got mine at Sears.http://www.amazon.com/dp/B001A4CWHO?tag=remtresap-20&camp=14573&creative=327641&linkCode=as1&creativeASIN=B001A4CWHO&adid=0VBKXC4CCHG5YQTZ8PM7&
If the screws are in the hull, then how can the fitting twist? Shouldn't the screws hold the fitting in place? How is that the fitting will twist along with the screws?