McGARD 74024 STERN DRIVE LOCK - M12 X 1.25
Simply replace one of the stern drive mounting nuts with a McGard lock. Stern drive locks are fully machined from high quality stainless steel and through-hardened. This proven design features a free-spinning collar that turns if attacked by gripping tools without loosening the lock. Give yourself the best protection available against stern drive theft.
Fits: Yamaha with M12 X 1.25 Mounting Bolts