{"product_id":"t-h-marine-trailer-coupler-safety-pin-zinc-steel","title":"T-H Marine Trailer Coupler Safety Pin, Zinc Steel","description":"\u003cp class=\"nvn-hero\"\u003eThe T-H Marine trailer coupler safety pin keeps your coupler locked down on the hitch ball so the latch can't vibrate open on the road. It's zinc plated steel for corrosion resistance, with a 1\/4 inch diameter and 1-3\/4 inch length that fits couplers with up to 1-1\/2 inches of clearance. Simple, cheap insurance for every tow.\u003c\/p\u003e\n\n\u003cdiv class=\"nvn-description\"\u003e\n\u003cp\u003eThe T-H Marine trailer coupler safety pin is the small part that does a big job. It drops through your trailer coupler latch and keeps the coupler clamped down on the hitch ball, so a bump in the road or a rough launch ramp can't shake it loose. It's a simple piece of zinc plated steel, but it's the difference between a trailer that stays hitched and one that doesn't.\u003c\/p\u003e\n\u003cp\u003eHere's the situation it's built for. You back the boat down, load up, and latch the coupler over the ball. The latch handle holds it closed, but on its own a latch can vibrate open over miles of highway or wiggle free on a washboard gravel road. The safety pin slides through the coupler and blocks the latch from lifting. That's the whole point. No pin, and you're trusting a spring and a handle to hold a few thousand pounds of boat and trailer behind you.\u003c\/p\u003e\n\u003cp\u003eThis one is round in shape with a 1\/4 inch diameter body and a 1-3\/4 inch length, sized to pass through a coupler latch with up to 1-1\/2 inches of clearance. If you've ever lost the original pin at the ramp, or found a rusty one seized in place, you know why a clean replacement matters. The pin is zinc plated steel, so it shrugs off the corrosion that eats bare steel alive around water. Freshwater, salt spray, the constant wet-dry cycle of a trailer that lives outside, all of it works against hardware like this. The plated finish buys you a lot more service life than a raw pin.\u003c\/p\u003e\n\u003cp\u003eWho needs one? Anybody towing a boat. Bass boat, center console, pontoon, aluminum jon boat on a small utility trailer, it doesn't matter. If your coupler has a safety pin hole and the pin is missing, bent, or rusted, this is the fix. It's also smart to carry a spare in the tow vehicle. These things walk off. They get left on the tailgate, dropped in the grass, or handed to a buddy and never come back. A spare in the glovebox has saved more than one launch day.\u003c\/p\u003e\n\u003cp\u003eInstalling it couldn't be simpler. Latch the coupler over the ball, line up the hole in the coupler body, and push the pin through until it seats. That's it. No tools, no adjustment. Before a long haul, give the pin a quick look and a wiggle to make sure it's seated and hasn't backed out. A ten second check in the driveway beats a problem on the interstate.\u003c\/p\u003e\n\u003cp\u003eA few honest notes. Couplers come in different sizes and latch designs, so measure before you assume this drops right in. The pin fits applications with up to 1-1\/2 inches of clearance and uses a 1\/4 inch diameter, which covers a lot of common couplers, but not every one. If your coupler hole is larger or smaller, this isn't the right pin. And while the zinc plating fights corrosion well, nothing is truly rustproof forever in salt water. Rinse your trailer hardware after saltwater trips and swap the pin if you ever see it pitting or binding.\u003c\/p\u003e\n\u003cp\u003eIt's a low cost part, but it's not a place to cut corners. A coupler that comes off the ball at speed is one of the worst things that can happen on a tow. The safety pin is cheap insurance against exactly that. Keep a good one in the coupler and a spare in the truck, and you've covered one of the easiest to ignore parts of your rig.\u003c\/p\u003e\n\u003cp\u003eT-H Marine has been making trailering and rigging hardware for boaters for a long time, and this pin fits right into that line of simple, no-nonsense gear. It does one thing and does it well. We're happy to help you figure out whether it fits your coupler if you're not sure, just send us the measurements and we'll point you the right way.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul class=\"nvn-features\"\u003e\n  \u003cli\u003e1\/4 inch diameter zinc plated steel pin resists the corrosion that seizes up bare hardware around water\u003c\/li\u003e\n  \u003cli\u003e1-3\/4 inch length passes cleanly through the coupler latch\u003c\/li\u003e\n  \u003cli\u003eFits trailer couplers with up to 1-1\/2 inches of clearance\u003c\/li\u003e\n  \u003cli\u003eRound pin shape slides in and out without any tools\u003c\/li\u003e\n  \u003cli\u003eZinc plated finish adds corrosion resistance for freshwater and salt spray exposure\u003c\/li\u003e\n  \u003cli\u003eLocks the coupler latch closed so it can't vibrate open on the road\u003c\/li\u003e\n  \u003cli\u003eSimple drop-in replacement for a missing, bent, or rusted original pin\u003c\/li\u003e\n  \u003cli\u003eInexpensive enough to keep a spare in the tow vehicle\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 T-H Marine Supplies 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 does this safety pin do?\u003c\/summary\u003e\n    \u003cp\u003eIt drops through your trailer coupler latch and keeps the coupler locked on the hitch ball, so the latch can't vibrate open while you tow.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat size is the pin?\u003c\/summary\u003e\n    \u003cp\u003eIt's a round pin with a 1\/4 inch diameter and a 1-3\/4 inch length, built for couplers with up to 1-1\/2 inches of clearance.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is it made of?\u003c\/summary\u003e\n    \u003cp\u003eZinc plated steel. The plating adds corrosion resistance for the wet, salty conditions trailer hardware lives in.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill it fit my coupler?\u003c\/summary\u003e\n    \u003cp\u003eIt fits a lot of common couplers with a 1\/4 inch pin hole and up to 1-1\/2 inches of clearance. Measure your coupler's pin hole and latch gap before ordering, since coupler designs vary.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eCan I use it in salt water?\u003c\/summary\u003e\n    \u003cp\u003eThe zinc plated finish resists corrosion well in salt spray, but rinse your trailer hardware after saltwater trips and replace the pin if you ever see pitting or binding.\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. Latch the coupler over the ball, line up the hole, and push the pin through until it seats. No tools or adjustment needed.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs it worth keeping a spare?\u003c\/summary\u003e\n    \u003cp\u003eYes. These pins are easy to lose at the ramp, so a spare in the glovebox is cheap insurance against a stuck launch day.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIf the coupler already latches, why does the pin matter?\u003c\/summary\u003e\n    \u003cp\u003eThe latch handle can vibrate open over miles of road or on a rough ramp. The pin blocks the latch from lifting, so the coupler stays clamped on the ball.\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\u003eT-H Marine Trailer Coupler Safety Pin, Zinc Plated Steel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003ctd\u003eT-H Marine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eManufacturer Part Number\u003c\/th\u003e\n\u003ctd\u003eBE-TR-59401-DP\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eUPC\u003c\/th\u003e\n\u003ctd\u003e733572187038\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eProduct Type\u003c\/th\u003e\n\u003ctd\u003eTrailer Coupler Safety Pin\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eShape\u003c\/th\u003e\n\u003ctd\u003eRound\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eDiameter\u003c\/th\u003e\n\u003ctd\u003e1\/4 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eLength\u003c\/th\u003e\n\u003ctd\u003e1-3\/4 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eClearance\u003c\/th\u003e\n\u003ctd\u003e1-1\/2 Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eMaterial\u003c\/th\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eFinish\u003c\/th\u003e\n\u003ctd\u003eZinc Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003ctr\u003e\n\u003cth\u003eCorrosion Resistance\u003c\/th\u003e\n\u003ctd\u003eCorrosion Resistant\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 does this safety pin do?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It drops through your trailer coupler latch and keeps the coupler locked on the hitch ball, so the latch can't vibrate open while you tow.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What size is the pin?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It's a round pin with a 1\/4 inch diameter and a 1-3\/4 inch length, built for couplers with up to 1-1\/2 inches of clearance.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is it made of?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Zinc plated steel. The plating adds corrosion resistance for the wet, salty conditions trailer hardware lives in.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Will it fit my coupler?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"It fits a lot of common couplers with a 1\/4 inch pin hole and up to 1-1\/2 inches of clearance. Measure your coupler's pin hole and latch gap before ordering, since coupler designs vary.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can I use it in salt water?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The zinc plated finish resists corrosion well in salt spray, but rinse your trailer hardware after saltwater trips and replace the pin if you ever see pitting or binding.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Do I need any tools to install it?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"No. Latch the coupler over the ball, line up the hole, and push the pin through until it seats. No tools or adjustment needed.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Is it worth keeping a spare?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Yes. These pins are easy to lose at the ramp, so a spare in the glovebox is cheap insurance against a stuck launch day.\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"If the coupler already latches, why does the pin matter?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The latch handle can vibrate open over miles of road or on a rough ramp. The pin blocks the latch from lifting, so the coupler stays clamped on the ball.\"\n            }\n        }\n    ]\n}\n\u003c\/script\u003e\n","brand":"T-H Marine","offers":[{"title":"Default Title","offer_id":67601593794653,"sku":"2011314","price":5.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0299\/7266\/0317\/files\/ImageServerAPI_ad2e6f7c-f60a-4e37-83ac-703f169b4b97.jpg?v=1791016539","url":"https:\/\/nvnmarine.com\/products\/t-h-marine-trailer-coupler-safety-pin-zinc-steel","provider":"NVN Marine","version":"1.0","type":"link"}