{"product_id":"57167-hillman-5-16-in-x-3-in-l-zinc-plated-steel-carriage-bolt-100-pk","title":"Hillman 5\/16 in. x 3 in. Zinc-Plated Steel Carriage Bolt, 100-Pack","description":"\u003ch1\u003e5\/16 in. x 3 in. Zinc Carriage Bolts (100-Pack)\u003c\/h1\u003e\n    \u003cp\u003e\u003cstrong\u003eZinc-plated steel carriage bolts designed for fastening wood to wood or metal while providing a smooth, low-profile dome head finish. The square shoulder locks into the material to prevent spinning during tightening, delivering a clean, secure install for decks, fences, carts, and general projects.\u003c\/strong\u003e\u003c\/p\u003e\n    \u003chr\u003e\n    \u003ch2\u003eKey Features:\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eZinc-Plated Protection:\u003c\/strong\u003e Resists rust and corrosion for durable indoor and light outdoor use\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow-Profile Dome Head:\u003c\/strong\u003e Creates a smooth, snag-free surface ideal where clearance is limited\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Shoulder Lock:\u003c\/strong\u003e Grips the material to prevent bolt rotation—no washer needed under the head\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Material Use:\u003c\/strong\u003e Fastens wood to wood or wood to metal with reliable holding power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstallation Tip:\u003c\/strong\u003e Pre-drill a hole matching the bolt diameter for best results\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\u003eBolt Diameter\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e5\/16 in.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eLength\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e3 in.\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 UNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSteel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFinish\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eZinc-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eHead Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDome (carriage) head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eShoulder\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSquare shoulder under head\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePack Quantity\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e100 pieces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eIntended Use\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFasten wood to wood or wood to metal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eInstallation Recommendation\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003ePre-drill hole matching bolt diameter\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: What materials can these carriage bolts fasten?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e They are designed to fasten a wood face to either wood or metal.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Do I need a washer under the head?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e No— the square shoulder seats in the material to prevent turning, eliminating the need for a washer under the head.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: Are these suitable for outdoor use?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e The zinc plating offers moderate corrosion resistance, suitable for indoor and some light outdoor applications; for harsh environments, consider stainless or hot-dip galvanized.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What drill size should I use?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Pre-drill a hole that matches the bolt diameter (5\/16 in.) for proper fit.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003cp\u003e\u003cstrong\u003eQ: What nuts are compatible?\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eA:\u003c\/strong\u003e Use 5\/16 in.-18 coarse thread nuts and washers as needed on the nut side.\u003c\/p\u003e\n    \u003chr\u003e\n    \n    \u003ch2\u003eA Clean, Domed Detail for Seamless Strength\u003c\/h2\u003e\n    \u003cp\u003eThe soft dome of this carriage bolt delivers a polished, unobtrusive accent—strength that disappears into the design. I love how the square shoulder locks in, keeping the head flush and refined on benches, gates, and utility carts. Pair it with zinc hardware for a cohesive, silvery sparkle that feels both functional and elevated. It’s the quiet essential that makes everyday builds feel luxe and intentional.\u003c\/p\u003e\n    \n    \u003chr\u003e\n    \u003cp\u003e\u003cstrong\u003eSecure your next project with these zinc-plated carriage bolts—order the 100-pack and build with strength and a clean, low-profile finish.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Hillman","offers":[{"title":"Default Title","offer_id":48991908692182,"sku":null,"price":40.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/5244\/2838\/files\/3fd956b5135e6c4b3ea7ff36b7c0449e6294ac2a_8716db45-1efa-4f42-9684-888ce89b164a.jpg?v=1783639216","url":"https:\/\/waybilt.com\/products\/57167-hillman-5-16-in-x-3-in-l-zinc-plated-steel-carriage-bolt-100-pk","provider":"Buildsupply","version":"1.0","type":"link"}