{"product_id":"value-collection-451657br-hex-head-cap-screw-grade-8","title":"Value Collection 451657BR Hex Head Cap Screw Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 451657BR is a heavy-duty hex head cap screw engineered for high-strength fastening applications. With a thread size of 1-3\/8-6 UNC and a length under head of 8 inches, this fastener is partially threaded to allow for precise clamping force in structural and mechanical assemblies. It is manufactured from Grade 8 steel with a bright, uncoated finish, meeting ASME B18.2.1 dimensional standards. Machinists, millwrights, ironworkers, and general contractors use fasteners of this class in heavy equipment, structural steel connections, and industrial machinery installations.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is suited for use in high-load bolted joints where Grade 8 strength requirements are specified by engineering drawings or project specifications. The partial threading makes it appropriate for applications where an unthreaded shank in the grip area is needed to resist shear forces. Typical install scenarios include heavy-duty machinery bases, structural steel assemblies, and large-diameter flange connections in industrial and commercial construction environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction for high tensile and proof load capacity\u003c\/li\u003e\n  \u003cli\u003e1-3\/8-6 UNC thread form for compatibility with standard inch-series heavy hex nuts\u003c\/li\u003e\n  \u003cli\u003ePartial threading preserves an unthreaded shank for shear-resistant bolted joints\u003c\/li\u003e\n  \u003cli\u003eBright, uncoated finish maintains dimensional precision per ASME B18.2.1\u003c\/li\u003e\n  \u003cli\u003e2-1\/16 inch hex key drive size suits standard heavy-duty impact and torque wrenches\u003c\/li\u003e\n  \u003cli\u003eASME B18.2.1 compliance ensures standardized dimensions for interchangeable fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard inch-series hex head cap screw for use with 1-3\/8-6 UNC heavy hex nuts and washers in structural, industrial, and mechanical bolted assemblies requiring Grade 8 fastener specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic, millwright, or ironworker using calibrated torque equipment rated for Grade 8 fasteners of this diameter. De-energize and lock out all equipment before disassembly or fastener replacement in machinery applications. Reference applicable structural or mechanical engineering specifications for required torque values, as none are supplied with this component. Ensure mating threads and bearing surfaces are clean and free of debris 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: 1-3\/8-6 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: 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: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 2-1\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ASME B18.2.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 4.04 pounds\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: 451657BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51720770748722,"sku":"451657BR","price":67.88,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/790b4d3501edf1053a9c0358539ff990.jpg?v=1788568925","url":"https:\/\/voomisupply.com\/products\/value-collection-451657br-hex-head-cap-screw-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}