{"product_id":"57163-hillman-5-16-in-x-1-1-4-in-l-zinc-plated-steel-carriage-bolt-100-pk","title":"Hillman 5\/16 in. x 1-1\/4 in. Zinc-Plated Steel Carriage Bolt, 100-Pack","description":"\u003ch1\u003e5\/16\" x 1-1\/4\" Zinc-Plated Carriage Bolts (100-Pack)\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eDurable Hillman carriage bolts made of zinc-plated steel for reliable fastening in wood-to-wood or wood-to-metal applications. The square neck locks into wood to prevent spinning, while the rounded head offers a clean, semi-flush finish.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eReliable Wood Fastening:\u003c\/strong\u003e Square neck locks into wood to prevent bolt spin during tightening\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean Finish:\u003c\/strong\u003e Rounded head provides a semi-flush, washer-less appearance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorrosion Protection:\u003c\/strong\u003e Zinc-plated steel offers moderate rust resistance for indoor\/outdoor projects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eStandard Thread:\u003c\/strong\u003e 5\/16\"-18 fully threaded shank for common hardware compatibility\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBulk Value:\u003c\/strong\u003e Convenient 100-pack for jobsites and repeat projects\u003c\/li\u003e\n    \u003c\/ul\u003e\n    \n    \u003chr\u003e\n    \u003ch2\u003eSpecifications Table:\u003c\/h2\u003e\n    \u003ctable\u003e\n        \u003cthead\u003e\n            \u003ctr\u003e\n                \u003cth\u003e\u003cstrong\u003eSpecification\u003c\/strong\u003e\u003c\/th\u003e\n                \u003cth\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/th\u003e\n            \u003c\/tr\u003e\n        \u003c\/thead\u003e\n        \u003ctbody\u003e\n            \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSize\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16 x 1-1\/4-Inch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16\"-18\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUN\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Class\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eThread Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFully Threaded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFastener Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarriage Bolt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel (Alloy Steel listed by manufacturer)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eExterior Finish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc-Plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGlossy\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Style\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eRounded\/Dome with square neck; flat head appearance noted by manufacturer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFlat (manufacturer listing); rounded dome head common to carriage bolts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.31 inches (5\/16\")\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Hardness \/ Grade\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eGrade 2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNumber of Pieces\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eColor\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSilver \/ No Color\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShape\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCylindrical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUsage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eWood\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMeasurement System\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eInch\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIncluded Components\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eCarriage bolts only\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3.4 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eItem Model Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e240081\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eUPC\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e008236086676\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eGlobal Trade Identification Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e00008236086676\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eManufacturer\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eThe Hillman Group\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003c\/tbody\u003e\n    \u003c\/table\u003e\n    \u003chr\u003e\n    \u003ch2\u003eFrequently Asked Questions (FAQ):\u003c\/h2\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Are nuts included with these carriage bolts?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e No; this listing is for bolts only. Pair with compatible 5\/16\"-18 nuts and washers as needed.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Can these be used outdoors?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The zinc plating provides moderate corrosion resistance; for harsh coastal or long-term exterior exposure, consider hot-dip galvanized or stainless options.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What materials can I fasten with these?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Designed primarily for wood; commonly used for wood-to-wood or wood-to-metal connections when the square neck can seat into the wood.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Do I need a special tool to hold the head?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e No; the square underside locks into the wood to prevent turning, allowing tightening from the nut side.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What is the thread specification?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e 5\/16\"-18 UNC, fully threaded, Class 2A.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eA Sleek, Functional Fastener for Clean Wood Joinery\u003c\/h2\u003e\n    \u003cp\u003eThese zinc-plated carriage bolts bring a polished, minimal look to wood assemblies, letting the rounded heads sit with a subtle, refined presence. The square neck detail is the hero—anchoring into the timber to keep lines crisp and hardware unobtrusive. Use them on bench frames or garden structures where you want strength without visual clutter. A smart staple for elevated, durable craftsmanship.\u003c\/p\u003e\n    \u003chr\u003e\u003ch2\u003eAI Review Summary:\u003c\/h2\u003e\u003cp\u003eAcross verified reviews, customers praise consistent sizing, clean zinc finish, and strong performance in wood projects. Many note the square neck seats well and prevents spinning, making installation straightforward. Satisfaction with bulk value is common. Minor caveats include that zinc plating is best for indoor or mild outdoor use, and nuts\/washers are not included. Representative quotes: “Perfect fit—threads were clean and consistent.” “Great value for large woodworking projects.” “Worked flawlessly; the square neck bit into the lumber and stayed put.”\u003c\/p\u003e\n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eSecure your projects with these dependable, zinc-plated carriage bolts—add the 100-pack to your cart and build with confidence.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Hillman","offers":[{"title":"Default Title","offer_id":48991898829014,"sku":"240081","price":15.64,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/71wY9SW7Z0L._AC_SL1500_7161a9c2-e985-44df-be5b-2f2ad3131022.jpg?v=1783639134","url":"https:\/\/buildsupplyus.myshopify.com\/products\/57163-hillman-5-16-in-x-1-1-4-in-l-zinc-plated-steel-carriage-bolt-100-pk","provider":"Buildsupply","version":"1.0","type":"link"}