{"product_id":"towworks-trailer-hitch-lock-5-8-hardened-pin-extra-long-3-1-4-span-for-2-2-5-receivers-keyed-unique","title":"TowWorks Trailer Hitch Lock 5\/8\" Hardened Pin Extra-Long 3-1\/4\" Span for 2\" \u0026 2.5\" Receivers, Keyed Unique","description":"\u003cp\u003e\u003cstrong\u003eTowWorks 79631 is an extra-long, keyed-unique 5\/8\" trailer hitch locking pin designed to secure 2\" and 2.5\" Class III and IV receivers with a 3-1\/4\" active span.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis sturdy hitch lock combines a hardened steel 5\/8\" pin, a push-to-lock tubular mechanism, and rubber O-rings to reduce rattle, offering a reliable way to keep trailers, cargo carriers, and accessories secured. It arrives keyed unique (two tubular keys included) and includes a separate cotter-style spring clip for redundant security. The black e-coated over zinc-plated finish improves corrosion resistance while a watertight dust cap helps protect the lock core.\u003c\/p\u003e\n\n\u003ch3\u003eHow does the TowWorks 79631 fit different hitch receivers?\u003c\/h3\u003e\n\n\u003cp\u003eThe 79631 features an extra-long active length of up to 3-1\/4\" so it spans deeper or offset hitch tubes found on many Class III and IV setups. It is sized to work with both 2\" and 2.5\" (2-1\/2\") receiver openings when measured against your hitch dimensions. Always confirm your receiver and accessory tube thicknesses before buying to ensure the correct fit.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e5\/8\" hardened steel locking pin for heavy-duty applications\u003c\/li\u003e\n  \u003cli\u003eMaximum active span: 3-1\/4\" to clear thicker tubes or adapters\u003c\/li\u003e\n  \u003cli\u003eCompatible with 2\" and 2.5\" (2-1\/2\") receivers when dimensions match\u003c\/li\u003e\n  \u003cli\u003eCheck receiver wall thickness and accessory shank length before purchase\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat security features stop theft and reduce noise?\u003c\/h3\u003e\n\n\u003cp\u003eTowWorks combines mechanical and practical features: a tubular push-lock core keyed unique, a separate spring (cotter) clip for redundant retention, and rubber O-rings to eliminate play that causes rattles. The lock core is protected by a rubber dust cap to limit corrosion, and the zinc-plated plus black e-coat finish increases durability in outdoor conditions.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eTwo tubular keys provided, each lock keyed unique\u003c\/li\u003e\n  \u003cli\u003eSeparate spring clip can be used as backup retention\u003c\/li\u003e\n  \u003cli\u003eRubber O-rings reduce rattling and hold the pin steady\u003c\/li\u003e\n  \u003cli\u003eWatertight rubber dust cap shields the locking mechanism\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow easy is the TowWorks 79631 to use and maintain?\u003c\/h3\u003e\n\n\u003cp\u003eThe push-to-lock design requires only a quarter-turn with the tubular key to secure the pin, making installation quick. The included spring clip allows use without engaging the keyed lock if you prefer a simpler backup fastener, though the cotter pin must be installed for safe use. Occasional lubrication of the tubular core and rinsing of salt and dirt will prolong lifespan.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003ePush lock with 1\/4-turn tubular key operation for fast locking\/unlocking\u003c\/li\u003e\n  \u003cli\u003eCan be used with or without the lock mechanism when spring clip is in place\u003c\/li\u003e\n  \u003cli\u003eMaintenance: rinse off road salt and apply light lock lubricant as needed\u003c\/li\u003e\n  \u003cli\u003eDo not omit cotter pin when using without locking core for safety\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhy choose a keyed-unique option versus keyed-alike?\u003c\/h3\u003e\n\n\u003cp\u003eThis 79631 model is each keyed unique — useful when you need separate keys for different trailers or to prevent one key opening multiple locks. TowWorks offers keyed-alike alternatives (79632, 79633, 79630) if you prefer a single key for several locks; choose the SKU that matches your keying preference and quantity requirements.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e79631: each lock keyed unique (two keys included)\u003c\/li\u003e\n  \u003cli\u003e79632\/79633\/79630: available for keyed-alike quantities, choose accordingly\u003c\/li\u003e\n  \u003cli\u003eUnique keying increases compartmentalized security across multiple users\u003c\/li\u003e\n  \u003cli\u003eKeyed-alike simplifies access when managing several locks with one key\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The TowWorks 79631 suits vehicle owners, contractors, and recreational users who need a longer locking pin for thicker or deeper receiver setups on Class III and IV hitches. It’s ideal if you want a corrosion-resistant, anti-rattle hitch pin with a keyed-unique tubular lock and the option to use a cotter-style spring clip for extra safety. Confirm your receiver and accessory measurements before ordering to ensure a proper fit.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Will this fit a 2\" and 2.5\" receiver?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the 5\/8\" pin with up to 3-1\/4\" active span is designed to work with many 2\" and 2.5\" receivers when your hitch dimensions match.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use the lock without the keyed mechanism?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes — the included spring (cotter) clip provides backup retention if you choose not to engage the keyed lock, but the clip must be inserted for safe use.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"TowWorks","offers":[{"title":"Default Title","offer_id":48087535354014,"sku":"B07LF6FDH1","price":39.48,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/towworks-front-package-lock-pin.jpg?v=1785925472","url":"https:\/\/northtrailauto.ca\/products\/towworks-trailer-hitch-lock-5-8-hardened-pin-extra-long-3-1-4-span-for-2-2-5-receivers-keyed-unique","provider":"North Trail Auto","version":"1.0","type":"link"}