I have a 1960 Old Town Otca that was built with a mast step, but no rudder or gudgeons. I've been happily paddle steering it, but I'm interested in adding a rudder. I picked up a 1940's Old Town rudder from Bob Ross that had a yoke and pintels along with a pair of gudgeons. Looking through the photos in the threads, I see a mix of peened rivets and what look like screw or bolt heads. Are folks using rivet nuts in these installs or are these wood screws? Thanks for entertaining my naive question. I attached a photo from Benson Gray to show the hardware I'm talking about.