{"product_id":"bulldog-580405-class-iii-hitch-pin-lock-5-8-in","title":"Bulldog 580405 Class III Hitch Pin Lock, 5\/8 in","description":"\u003cp class=\"nvn-hero\"\u003eThe Bulldog 580405 is a stainless steel hitch pin lock that drops into a Class III receiver and replaces the flimsy pin and clip your ball mount came with. It's a 5\/8 inch dogbone lock, keyed for security, with a dust cap to keep the keyway clean. Tow your boat with one less thing to worry about at the ramp.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe Bulldog 580405 is a stainless steel receiver lock that takes the place of the standard pin and clip that came with your ball mount. Slide it through the receiver, turn the key, and your drawbar isn't going anywhere without you. It's a simple piece of gear, but it's the difference between finding your ball mount where you left it and finding an empty receiver in the launch lot.\u003c\/p\u003e\n\u003cp\u003eThis is a 5\/8 inch dogbone lock, which is the pin size Class III and most Class IV receivers use. If your hitch takes the fatter 5\/8 inch pin instead of the thinner 1\/2 inch one, this is the lock you want. It won't fit the smaller Class I and Class II receivers that use a 1\/2 inch pin, so check your receiver before you order.\u003c\/p\u003e\n\u003cp\u003eWe like the stainless steel body for anyone who tows near the water. Boat ramps, salt air, and road spray are hard on plain steel, and a rusted lock is a stuck lock. Stainless shrugs most of that off and keeps turning season after season. The included dust cap does its part too, capping the keyway so grit and spray stay out of the mechanism.\u003c\/p\u003e\n\u003cp\u003eThe dogbone shape spans the receiver and seats the same way your old pin did, so there's no drilling and no adapters. Push it through, snap the lock, pocket the key. That's the whole install. Keep the key on your trailer ring and you're set.\u003c\/p\u003e\n\u003cp\u003eOne thing to know: this is a receiver pin lock, not a coupler lock. It secures the ball mount to your tow vehicle. It doesn't lock the trailer's coupler to the ball or keep someone from hitching your trailer to their own truck. If you want to lock the coupler too, that's a separate piece. For what it does, though, this Bulldog lock is honest, simple security you'll set once and forget.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e5\/8 inch pin diameter fits Class III and most Class IV receivers that use the standard 5\/8 inch pin hole.\u003c\/li\u003e\n  \u003cli\u003eStainless steel construction resists rust and corrosion around boat ramps and salt air.\u003c\/li\u003e\n  \u003cli\u003eDogbone lock body replaces the stock hitch pin and clip and locks your ball mount into the receiver.\u003c\/li\u003e\n  \u003cli\u003eKeyed lock keeps your drawbar or ball mount from walking off in a parking lot or launch area.\u003c\/li\u003e\n  \u003cli\u003eIncluded dust cap seals the keyway against grit and road spray so the lock keeps turning.\u003c\/li\u003e\n  \u003cli\u003eSold as a single lock, ready to install with no drilling or adapters.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cdiv class=\"nvn-trust\"\u003e\n  \u003ch2\u003eWhy Buy from NVN Marine\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eAuthorized Bulldog reseller, full manufacturer warranty\u003c\/li\u003e\n    \u003cli\u003eNMEA member and ABYC certified, advice from real boat techs\u003c\/li\u003e\n    \u003cli\u003eSame-day shipping before 3 PM ET on in-stock items\u003c\/li\u003e\n    \u003cli\u003eNY headquarters and Fort Lauderdale flagship retail store\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"nvn-faq\"\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size receiver does this lock fit?\u003c\/summary\u003e\n    \u003cp\u003eIt's a 5\/8 inch pin lock built for Class III receivers, and it also fits most Class IV receivers that use the 5\/8 inch pin hole. It won't fit the smaller Class I and Class II receivers that take a 1\/2 inch pin, so check your receiver first.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it really stainless steel?\u003c\/summary\u003e\n    \u003cp\u003eYes. Bulldog builds the 580405 with a stainless steel body, which is why we like it for anyone towing near saltwater. Plain steel locks rust and seize up, and stainless holds up far better to spray and salt air.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this lock the trailer coupler too?\u003c\/summary\u003e\n    \u003cp\u003eNo. This is a receiver pin lock, so it secures your ball mount to the tow vehicle. It doesn't lock the trailer's coupler to the ball. If you want coupler security as well, you'll need a separate coupler lock.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat's the dust cap for?\u003c\/summary\u003e\n    \u003cp\u003eThe dust cap snaps over the keyway to keep grit, road spray, and salt out of the lock mechanism. Keep it on when you're not turning the key and the lock stays smooth a lot longer.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need any tools to install it?\u003c\/summary\u003e\n    \u003cp\u003eNo tools and no drilling. It slides through the receiver the same way your old pin and clip did. Push it through, turn the key to lock, and you're done.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow many locks come in the package?\u003c\/summary\u003e\n    \u003cp\u003eThis is sold as a single lock. If you've got more than one receiver to secure, you'll want one lock for each.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable class=\"nvn-specs\"\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n\u003cth\u003eTitle\u003c\/th\u003e\n\u003ctd\u003eBulldog 580405 Stainless Steel Class III Hitch Pin Lock, 5\/8 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eBulldog\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003e580405\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e783192025838\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eStainless Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFits Hitch Class\u003c\/th\u003e\n\u003ctd\u003eClass III\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003ePin Diameter\u003c\/th\u003e\n\u003ctd\u003e5\/8 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLock Style\u003c\/th\u003e\n\u003ctd\u003eDogbone\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLock Type\u003c\/th\u003e\n\u003ctd\u003eKeyed\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCoupler Lock\u003c\/th\u003e\n\u003ctd\u003eNot included (receiver pin lock only)\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDust Cap\u003c\/th\u003e\n\u003ctd\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eQuantity\u003c\/th\u003e\n\u003ctd\u003eSingle\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003cscript type=\"application\/ld+json\"\u003e\n{\n    \"@context\": \"https:\/\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size receiver does this lock fit?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a 5\/8 inch pin lock built for Class III receivers, and it also fits most Class IV receivers that use the 5\/8 inch pin hole. It won't fit the smaller Class I and Class II receivers that take a 1\/2 inch pin, so check your receiver first.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it really stainless steel?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. Bulldog builds the 580405 with a stainless steel body, which is why we like it for anyone towing near saltwater. Plain steel locks rust and seize up, and stainless holds up far better to spray and salt air.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Does this lock the trailer coupler too?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. This is a receiver pin lock, so it secures your ball mount to the tow vehicle. It doesn't lock the trailer's coupler to the ball. If you want coupler security as well, you'll need a separate coupler lock.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What's the dust cap for?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The dust cap snaps over the keyway to keep grit, road spray, and salt out of the lock mechanism. Keep it on when you're not turning the key and the lock stays smooth a lot longer.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need any tools to install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No tools and no drilling. It slides through the receiver the same way your old pin and clip did. Push it through, turn the key to lock, and you're done.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many locks come in the package?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"This is sold as a single lock. If you've got more than one receiver to secure, you'll want one lock for each.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"Bulldog","offers":[{"title":"Default Title","offer_id":45078566961245,"sku":"2009900","price":23.59,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_0b85d3d8-59d7-4fcf-98a0-22b8c779217b.jpg?v=1789938871","url":"https:\/\/nvnmarine.com\/products\/bulldog-580405-class-iii-hitch-pin-lock-5-8-in","provider":"NVN Marine","version":"1.0","type":"link"}