McGARD 74036 OUTBOARD MOTOR LOCK - 1/2" X 20
McGard outboard motor locks are designed to lock the outboard onto the transom of the boat. Simply replace one of the mounting nuts with a McGard locking nut. McGard outboard motor locks are identical in quality and construction to our stern drive locks. A free-spinning collar turns if attacked by gripping tools, protecting you against costly outboard motor theft and the resulting inconvenience.
Fits: Mercury/Mariner 40 HP and larger (2 stroke), Mercury 25 HP and larger (4 stroke), Suzuki 150 - 300 HP with 1/2" X 20 mounting bolt.