I have 4 - long, threaded tiller pins for the Autohelm/raytheon/RayMarine Tiller pilot. This pin fits the tiller brackets (there are 3 sizes) one pin fits all. The pin connects the auto pilot to the tiller. It also fits the Navico tiller pilot's Tiller bracket contact me at: Grumpy5000@aol.com p.s. West Marine only had the short one in stock