{"product_id":"hillman-3-8-in-x-9-in-l-zinc-plated-steel-carriage-bolt","title":"HILLMAN 3\/8 in. X 9 in. L Zinc-Plated Steel Carriage Bolt","description":"\u003cdiv\u003e\n\u003cp\u003eHillman 3\/8 in. x 9 in. Zinc-Plated Steel Carriage Bolt is a dependable, long-reach fastener designed for sturdy wood-to-wood connections. With a rounded head and a square neck, it seats cleanly in timber while resisting turning during tightening, making it ideal for DIY projects and professional builds alike. The zinc-plated finish adds durable corrosion resistance, so you can rely on this bolt in outdoor environments and varied climates.\u003c\/p\u003e \u003ch3\u003eKey specifications\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003e\n\u003cstrong\u003eDiameter:\u003c\/strong\u003e 3\/8 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eLength:\u003c\/strong\u003e 9 in\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Steel\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eFinish:\u003c\/strong\u003e Zinc-Plated\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eThread Type:\u003c\/strong\u003e Coarse\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eGrade:\u003c\/strong\u003e 2\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003ePackaging:\u003c\/strong\u003e Boxed\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eQuantity in Package:\u003c\/strong\u003e 1\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eUnit of Measurement:\u003c\/strong\u003e SAE\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Carriage Bolt\u003c\/li\u003e \u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e Hillman\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eWhy this carriage bolt stands out\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eThe domed head paired with a square undercut neck prevents rotation as you tighten from the opposite side—great for through-hypothetical joints where access is limited.\u003c\/li\u003e \u003cli\u003eZinc plating provides corrosion resistance, extending the life of outdoor projects such as decks, fences, or timber gates where moisture exposure is a factor.\u003c\/li\u003e \u003cli\u003eCoarse threads deliver quicker engagement in softwoods and common construction lumber, reducing install time on projects that require multiple fasteners.\u003c\/li\u003e \u003cli\u003eAt 9 inches, this bolt accommodates thicker boards or assemblies that need a single, solid anchor without needing extra spacers or adapters.\u003c\/li\u003e \u003cli\u003eCertified Grade 2 strength suits standard-duty applications—from furniture frames to timber framing—without overbuilding for everyday tasks.\u003c\/li\u003e\n\u003c\/ul\u003e \u003ch3\u003eIdeal uses and practical tips\u003c\/h3\u003e\n\u003cul\u003e \u003cli\u003eOutdoor decks, fencing, gates, and other wooden structures where a clean, unobtrusive fastener is preferred.\u003c\/li\u003e \u003cli\u003eFurniture frames, shelves, and timber connections where a smooth, rounded head is desirable for aesthetics and safety.\u003c\/li\u003e \u003cli\u003eWhen installing, pair the carriage bolt with an appropriate nut and washer for a secure load transfer; predrill a pilot hole sized for the bolt to minimize wood splitting.\u003c\/li\u003e \u003cli\u003eStore and handle in the boxed packaging to keep the single bolt protected until you’re ready to use it.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eTrust Hillman to deliver straightforward, durable hardware that meets everyday building needs. This 3\/8 in. x 9 in. zinc-plated carriage bolt combines practical design with reliable material strength, helping you complete projects with confidence and a clean finish.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Hillman","offers":[{"title":"Default Title","offer_id":52171854151954,"sku":"53837","price":88.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0928\/1024\/8466\/files\/53837_A.eps_High.jpg?v=1775503226","url":"https:\/\/nationalhardwaregroup.com\/products\/hillman-3-8-in-x-9-in-l-zinc-plated-steel-carriage-bolt","provider":"National Hardware Group","version":"1.0","type":"link"}