{"title":"navtags_parts_underwater-gear_prop-shaft_hardware","description":null,"products":[{"product_id":"under-waterprop-shaft-hardware-kit-3500003","title":"Prop Shaft Hardware Kit w\/Brass Key","description":"\u003cp\u003eFor use with most 1-1\/8\" prop shafts. Includes a brass key, nylock nut, and stainless cotter pin.\u003c\/p\u003e","brand":"Malibu Boats","offers":[{"title":"Default Title","offer_id":42689582334169,"sku":"3500003","price":30.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0099\/1228\/7296\/products\/f7a5b0fba12d89419593854cd8b72af8.png?v=1740094196"},{"product_id":"coupler-nut-key-kit-1inch-shaft","title":"1\" Shaft Coupler Nut \u0026 Key Kit – 3\/4-10 Nyloc Locknut","description":"\u003cp\u003eKeep your drivetrain secure with this \u003cstrong\u003e1\" shaft coupler nut and key kit\u003c\/strong\u003e from Marine Hardware. Designed for marine and underwater applications, this kit includes a corrosion-resistant hex nylon-insert lock nut (nyloc) and a precision rectangular shaft key to help maintain a tight, reliable connection between your coupler and shaft. The nylon insert resists vibration loosening—ideal for high-load, wet, and high-vibration environments.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFits shaft size:\u003c\/strong\u003e 1\" shaft\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNut thread:\u003c\/strong\u003e 3\/4-10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNut style:\u003c\/strong\u003e Hex nyloc lock nut (nylon-insert)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eIncludes:\u003c\/strong\u003e Lock nut + rectangular shaft key (with chamfered end)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse case:\u003c\/strong\u003e Securing shaft couplers and keyed shaft assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eWill this work with a keyed coupler on a 1\" shaft?\u003c\/strong\u003e\u003cbr\u003e\nYes—this kit is intended for 1\" keyed shaft\/coupler setups and includes both the key and the retaining nut (3\/4-10 thread).\u003cbr\u003e\n\u003cstrong\u003eWhat does the nylon insert do?\u003c\/strong\u003e\u003cbr\u003e\nThe nyloc insert helps prevent the nut from backing off due to vibration, improving safety and reliability.\u003c\/p\u003e","brand":"Apex Canvas","offers":[{"title":"Default Title","offer_id":42980199792857,"sku":"0253ZINC0.750-10-Kit","price":23.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0099\/1228\/7296\/products\/PXL_20220621_193356814.jpg?v=1740091879"},{"product_id":"castle-nut","title":"Castle Nut","description":"\u003cp data-start=\"663\" data-end=\"1159\" class=\"\"\u003eThis \u003cstrong data-start=\"692\" data-end=\"725\"\u003emarine-grade brass castle nut\u003c\/strong\u003e is built for inboard prop shafts with a \u003cstrong data-start=\"766\" data-end=\"791\"\u003e1\" to 1-1\/8\" diameter\u003c\/strong\u003e using \u003cstrong data-start=\"798\" data-end=\"822\"\u003e3\/4\"-10 thread pitch\u003c\/strong\u003e, a standard on many Malibu and Axis boats. Its castellated design allows a cotter pin to lock the nut in place, preventing vibration-related loosening and securing your propeller to the shaft. Machined to precise standards and resistant to corrosion, this nut is essential for propeller retention in both salt and freshwater conditions.\u003cmeta charset=\"utf-8\"\u003e\u003c\/p\u003e\n\u003cp data-start=\"1161\" data-end=\"1180\" class=\"\"\u003e\u003cstrong data-start=\"1161\" data-end=\"1178\"\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"1181\" data-end=\"1407\"\u003e\n\u003cli data-start=\"1181\" data-end=\"1228\" class=\"\"\u003e\n\u003cp data-start=\"1183\" data-end=\"1228\" class=\"\"\u003eFits 1\"–1-1\/8\" prop shafts (3\/4\"-10 thread)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1229\" data-end=\"1301\" class=\"\"\u003e\n\u003cp data-start=\"1231\" data-end=\"1301\" class=\"\"\u003eCastle-style slots for cotter pin security (cotter pin not included)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1302\" data-end=\"1359\" class=\"\"\u003e\n\u003cp data-start=\"1304\" data-end=\"1359\" class=\"\"\u003eBrass construction for long-term corrosion resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1360\" data-end=\"1407\" class=\"\"\u003e\n\u003cp data-start=\"1362\" data-end=\"1407\" class=\"\"\u003eUsed on Malibu, Axis, and other inboard boats\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Marine Hardware","offers":[{"title":"Default Title","offer_id":46596911694041,"sku":"0245B0.75-10","price":38.22,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0099\/1228\/7296\/files\/brass_castle_nut_resized_5c57ca53-61b2-47c4-833b-056ee58aba71.png?v=1746138363"},{"product_id":"shaft-coupler-nut","title":"Prop Shaft Coupler Nut for 3431934 - Marine Hardware","description":"\u003cp\u003eReplace a worn or damaged fastener with this \u003cstrong\u003eprop shaft coupler nut\u003c\/strong\u003e designed for a secure, dependable connection on compatible marine drivetrains. Built to match the fit and function required for \u003cstrong\u003eprop shaft 3431934\u003c\/strong\u003e, this coupler nut helps keep your shaft-to-coupling assembly properly tightened for smooth power transfer and confident operation.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eProduct type:\u003c\/strong\u003e Shaft coupler nut\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Prop shaft \u003cstrong\u003e3431934\u003c\/strong\u003e\n\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUse:\u003c\/strong\u003e Secures the coupler connection on the prop\/drive shaft assembly\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\/Vendor:\u003c\/strong\u003e Marine Hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e Please confirm the part number (\u003cstrong\u003e3431934\u003c\/strong\u003e) and thread\/fitment requirements for your specific application before ordering, as marine driveline components can vary by model and year.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003cbr\u003e\n\u003cstrong\u003eIs this nut compatible with other prop shafts?\u003c\/strong\u003e\u003cbr\u003e\nThis listing is intended for prop shaft \u003cstrong\u003e3431934\u003c\/strong\u003e. If you have a different shaft or coupler, verify measurements and part references prior to purchase.\u003cbr\u003e\n\u003cstrong\u003eIs this the full coupler assembly?\u003c\/strong\u003e\u003cbr\u003e\nNo—this product is the \u003cstrong\u003ecoupler nut only\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Malibu Boats","offers":[{"title":"Default Title","offer_id":47524998119641,"sku":"0253ZINC1-4","price":12.5,"currency_code":"USD","in_stock":true}]}],"url":"https:\/\/www.malibuparts.com\/collections\/navtags_parts_underwater-gear_prop-shaft_hardware.oembed","provider":"Malibu Parts","version":"1.0","type":"link"}