{"product_id":"value-collection-215038msc-carriage-bolt-1-4-20-3-4in-grade-8","title":"Value Collection 215038MSC Carriage Bolt 1\/4-20 3\/4in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 215038MSC is a 1\/4-20 carriage bolt designed for applications requiring a smooth, round head with a square neck that resists rotation during assembly. The bolt is fully threaded along its 3\/4-inch length under head, conforming to UNC thread standards and meeting SAE J429 Grade 8 requirements. Grade 8 alloy steel construction delivers high tensile strength suitable for structural and heavy-duty fastening work. The uncoated bright finish means no coating interference with tight tolerance assemblies. This SKU is sold in a package quantity of 100 bolts, making it appropriate for contractors, maintenance crews, and production shops consuming fasteners in volume.\u003c\/p\u003e\n\u003cp\u003eCarriage bolts of this specification are commonly used in wood-to-metal connections, equipment frames, trailer assemblies, and general structural fabrication where a tamper-resistant, low-profile head is required. The square neck seats into a pre-drilled square hole or bites into wood fiber to prevent spin-out during nut tightening. The 1\/4-20 UNC thread is one of the most widely used coarse-thread fastener sizes in North American trade and maintenance work, fitting standard hex nuts, flange nuts, and wing nuts of the same thread designation.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction meets SAE J429 for high tensile and proof load requirements\u003c\/li\u003e\n  \u003cli\u003eFully threaded 3\/4-inch length under head maximizes engagement in thin-material applications\u003c\/li\u003e\n  \u003cli\u003eSquare neck design prevents rotation during nut installation without needing a wrench on the head\u003c\/li\u003e\n  \u003cli\u003e1\/4-20 UNC thread is compatible with standard North American coarse-thread nuts and hardware\u003c\/li\u003e\n  \u003cli\u003eUncoated bright finish suits applications where coating buildup would affect fit or where secondary coating will be applied\u003c\/li\u003e\n  \u003cli\u003ePackaged in quantities of 100 for job-site and production-level consumption\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 1\/4-20 UNC hex nuts, coupling nuts, and washers in wood, metal, and composite assemblies requiring a round-head, square-neck fastener per SAE J429 Grade 8 specification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall carriage bolts by inserting through a clearance hole sized for the shank diameter and seating the square neck fully before applying a nut and washer on the back side. In wood applications, draw the nut down until the square neck pulls flush and locks; in metal applications, a square punched or broached hole is required to prevent rotation. Always use a hardened flat washer under the nut when bearing against soft or oversized holes to prevent pull-through. Follow applicable structural or equipment manufacturer torque specifications for Grade 8 fasteners when a specific clamp load is required.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\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: 0.75 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: Uncoated \/ Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: SAE J429\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 100 pieces\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0141 pounds (per bolt)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSystem of Measurement\u003c\/strong\u003e: Inch\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: 215038MSC\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693318701362,"sku":"215038MSC","price":9090.34,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/94ee77dad00547d98ed0becb32696267_652d6875-a73e-4554-bc9c-7cb5ffff9390.jpg?v=1788310560","url":"https:\/\/voomisupply.com\/products\/value-collection-215038msc-carriage-bolt-1-4-20-3-4in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}