{"product_id":"value-collection-218167msc-carriage-bolt-3-4-10-2-3-4-in-grade-8","title":"Value Collection 218167MSC Carriage Bolt 3\/4-10 2-3\/4 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 218167MSC is a Grade 8 alloy steel carriage bolt with a 3\/4-10 UNC thread and a length under head of 2.75 inches. The square neck beneath the domed head locks into material during installation, resisting rotation without a wrench on the bolt. Full threading runs the entire shank length, giving maximum engagement across a wide range of material thicknesses. A zinc trivalent chromate finish provides corrosion resistance in exposed or moderately demanding environments. This fastener meets SAE J429 standards and is suited for high-strength structural and mechanical assemblies where a smooth, rounded head profile is required.\u003c\/p\u003e\n\u003cp\u003eCarriage bolts of this size and grade are commonly used in heavy-duty wood-to-metal connections, equipment frames, trailer assemblies, and structural brackets. The 3\/4-10 coarse thread is a standard size in industrial, agricultural, and construction applications. Grade 8 alloy steel provides elevated tensile and proof-load strength compared to Grade 2 or Grade 5 fasteners, making it appropriate for high-load joints. Licensed tradespeople, millwrights, ironworkers, and general contractors typically specify Grade 8 hardware where joint integrity under dynamic or heavy static loads is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength per SAE J429\u003c\/li\u003e\n  \u003cli\u003e3\/4-10 UNC coarse thread, fully threaded for maximum engagement flexibility\u003c\/li\u003e\n  \u003cli\u003eSquare neck under dome head prevents rotation during nut tightening\u003c\/li\u003e\n  \u003cli\u003eZinc trivalent chromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eLength under head: 2.75 inches\u003c\/li\u003e\n  \u003cli\u003eSold individually (package quantity: 1)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 3\/4-10 UNC carriage bolt for use in any application requiring a SAE J429 Grade 8 fully threaded fastener with a square-neck dome head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation typically requires drilling a hole sized to allow the square neck to seat flush and lock against the substrate material. Torque the nut from the nut side only — the square neck holds the bolt stationary. Always consult applicable structural codes and engineering specifications when using high-strength fasteners in load-bearing assemblies. Inspect threads and mating surfaces for damage before installation.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/4-10\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: 2.75 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\u003eStandard\u003c\/strong\u003e: SAE J429\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.42 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 218167MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51692860866866,"sku":"218167MSC","price":26.44,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_dd6ce5d0-4a22-4066-bddd-78c605c0c603.jpg?v=1788304171","url":"https:\/\/voomisupply.com\/products\/value-collection-218167msc-carriage-bolt-3-4-10-2-3-4-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}