{"product_id":"value-collection-215517msc-carriage-bolt-3-8-16-1-3-4-in-grade-8","title":"Value Collection 215517MSC Carriage Bolt 3\/8-16 1-3\/4 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 215517MSC is a Grade 8 alloy steel carriage bolt with a 3\/8-16 UNC thread and 1-3\/4 inch length under head. The domed head and square neck provide a clean bearing surface and resist rotation during installation without requiring a wrench on the bolt head. A zinc trivalent chromate finish delivers corrosion resistance suitable for structural and mechanical assemblies. This bolt is fully threaded along the 1-3\/4 inch shank and conforms to SAE J429 standards, making it a specification-grade fastener for demanding load-bearing connections. Installers working in fabrication, construction framing, machinery mounting, and equipment assembly commonly select this bolt where a flush or smooth fastener head is required on the accessible face.\u003c\/p\u003e\n\u003cp\u003eThis carriage bolt is suited for through-bolted connections in wood, metal, and composite materials where the square neck seats into a pre-drilled hole to prevent spinning. Typical applications include structural framing, trailer fabrication, farm equipment, conveyor systems, and general industrial assembly. The Grade 8 rating indicates a minimum tensile strength appropriate for high-stress mechanical joints. It is sold in quantities conforming to the stated minimum order quantity and is measured using the inch system throughout.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength in structural applications\u003c\/li\u003e\n  \u003cli\u003e3\/8-16 UNC fully threaded shank, 1-3\/4 inch length under head\u003c\/li\u003e\n  \u003cli\u003eSquare neck design locks bolt in place during nut tightening, no wrench needed on head\u003c\/li\u003e\n  \u003cli\u003eZinc trivalent chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eConforms to SAE J429 fastener standard\u003c\/li\u003e\n  \u003cli\u003eDomed head provides a smooth, flush appearance on the exposed face\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 3\/8-16 UNC Grade 8 carriage bolt for use with matching 3\/8-16 hex nuts and washers in through-bolted structural and mechanical assemblies requiring inch-system fasteners.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by tradespeople and fabricators using standard hand tools. The square neck must be fully seated into a square-punched or broached hole, or drawn into a wood substrate, before torquing the nut to prevent head rotation. Power down or de-energize any associated equipment before servicing fastened assemblies. Follow applicable structural or mechanical codes for torque and joint design requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 1-3\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Style\u003c\/strong\u003e: Fully Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: Grade 8\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Trivalent Chromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: SAE J429\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161603\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: VALUE COLLECTION\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 215517MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718147539250,"sku":"215517MSC","price":2840.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_4935abe5-ba3d-499f-9a22-617993f67037.jpg?v=1788550340","url":"https:\/\/voomisupply.com\/products\/value-collection-215517msc-carriage-bolt-3-8-16-1-3-4-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}