{"product_id":"mcgard-stern-drive-locks-single-twin-sets-for-mercruiser-omc-cobra-volvo-drives","title":"McGard Stern Drive Locks - Single \u0026 Twin Sets for Mercruiser, OMC Cobra, Volvo Drives","description":"\u003cp\u003eMcGard stern drive locks protect your outdrive from theft while trailering, docking, or storing your boat. Machined from high-quality stainless steel with McGard's signature free-spinning collar design, these locks replace one of your existing stern drive mounting nuts and defeat pliers, wrenches, and other gripping tools -- if a thief tries to force it, the collar just spins freely instead of turning the lock. Available as a single lock for one stern drive or a twin lock set for boats with dual outdrives, this line covers the most common stern drive threads used on Mercruiser Alpha and Bravo I-III drives, OMC Cobra and King Cobra drives, and Volvo Penta SX and DP-S drives.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBrand: McGard\u003c\/li\u003e\n\u003cli\u003eThread Size: 7\/16-20\u003c\/li\u003e\n\u003cli\u003eHex Size: 5\/8 inch\u003c\/li\u003e\n\u003cli\u003eOverall Lock Length: 0.750 inches\u003c\/li\u003e\n\u003cli\u003eMaterial: Stainless steel, through-hardened\u003c\/li\u003e\n\u003cli\u003eExterior Finish: Brushed\u003c\/li\u003e\n\u003cli\u003eSpecial Features: Free-spinning collar, theft-resistant design\u003c\/li\u003e\n\u003cli\u003eWeight (single): 1.5 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eSizes \u0026amp; Options\u003c\/h3\u003e\u003cp\u003eChoose the Single Lock if your boat has one stern drive, or the Twin Lock Set if you run dual outdrives -- the twin set includes two complete lock, key, and cap assemblies so both drives get matching protection from a single purchase. Both configurations share the same 7\/16-20 thread and 5\/8 inch hex, fitting Mercruiser Alpha\/Bravo I-III, OMC Cobra\/King Cobra, and Volvo SX\/DP-S drives.\u003c\/p\u003e","brand":"McGuard","offers":[{"title":"Single Lock","offer_id":49049212584155,"sku":"MCG-74018","price":35.02,"currency_code":"USD","in_stock":true},{"title":"Twin Lock Set","offer_id":49049212616923,"sku":"MCG-74019","price":53.71,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0839\/7586\/4539\/files\/MCG-74018_lg__96517.1722375300.500.750_35793b9b-5e2c-489a-8bcf-447725042df0.jpg?v=1785455600","url":"https:\/\/www.goodvibesmarina.com\/products\/mcgard-stern-drive-locks-single-twin-sets-for-mercruiser-omc-cobra-volvo-drives","provider":"Good Vibes Marina","version":"1.0","type":"link"}