Mcgard Stern Drive Lock Set 7/16" Twin Merc/OMC #371-74019
- For: MerCruiser, Alpha & Bravo, OMC Cobra & King Cobra Lock fully machined from high quality Stainless Steel and through hardened. This new design features a free-spinning collar that will turn if attacked by gripping tools without loosening the lock. To install simply replace on of the nuts on the sterndrive. -Overall Lock Length - .750" -7/16" - 20 Thread Size -5/8" Hex Size -Stern Drive Locks -Set of 2 Locks, 2 Keys and 2 Caps