Good luck. I lost one and couldn't find a direct replacement. I ordered some from Russell Marine Products but they're not long enough to go through the bracket and tighten up in the unit and they're smaller in diameter on the knob part. Only catches a couple of threads. I took the knobs off my 1222 and put them on my 93 and used the new ones on the 1222, as the gimble bracket is thinner. Believe me when I say I searched everywhere for them. Don't buy the ones from Factory Outlet Stores, they won't work either. I didn't want to buy a cradle or bail mount either. You would think Garmin would sell them separately.