Looking for help replacing the pin that supports the extension poles of my bimini. The pin mechanism is inside the pole, with only the round 'nub' sticking out. It catches against one of two hole in the extension pole, allowing me to extend or contract the pole. Water got inside the pole over the winter and broke the pin mechanism. I could drill through the stainless steel and put a clevis-type pin in, but only as a last resort. I can't find any distributor; not even sure if I've described this well. Any help greatly appreciated. Paul