{"product_id":"value-collection-451716br-hex-head-cap-screw-grade-8","title":"Value Collection 451716BR Hex Head Cap Screw Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 451716BR is a hex head cap screw sized at 1-3\/8-12 UNF thread by 7 inches under the head, manufactured from Grade 8 steel with a bright, uncoated finish. Grade 8 steel delivers high tensile strength suited to heavy-duty bolted connections in demanding mechanical and structural applications. The screw is partially threaded, conforming to ASME B18.2.1 dimensional standards. It is driven with a 2-1\/16-inch hex key or socket and is sold individually. This fastener is installed by millwrights, industrial mechanics, heavy equipment technicians, and other trade professionals working with large-diameter, high-strength bolted assemblies.\u003c\/p\u003e\u003cp\u003eThis cap screw is suited for use in heavy machinery, structural steel connections, agricultural equipment, and industrial fabrication where a 1-3\/8-12 UNF fine-thread pattern is specified. The partial thread shank provides a precise bearing surface in close-tolerance holes, making it appropriate for joints that require controlled clamping without full thread engagement through the entire grip length. Applications typically include equipment frames, press assemblies, and other high-load mechanical connections where Grade 8 strength ratings are required by design or specification.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eGrade 8 steel construction provides high tensile and proof-load strength for heavy-duty bolted joints\u003c\/li\u003e\n\u003cli\u003e1-3\/8-12 UNF thread form offers finer pitch than coarse-thread equivalents, improving thread engagement and vibration resistance\u003c\/li\u003e\n\u003cli\u003ePartially threaded shank supports precise load transfer across unthreaded grip sections\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for applications where plating or coating is not required or is applied post-installation\u003c\/li\u003e\n\u003cli\u003eConforms to ASME B18.2.1 dimensional standards for interchangeable fitment\u003c\/li\u003e\n\u003cli\u003eDriven with a 2-1\/16-inch hex socket for standard impact or torque wrench installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a direct-fit replacement or new-installation fastener wherever a 1-3\/8-12 UNF, Grade 8, partially threaded hex head cap screw conforming to ASME B18.2.1 is specified.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation should be performed by a qualified mechanic or millwright familiar with high-strength fastener torque requirements for the specific application and joint design. Always consult the equipment manufacturer's torque specification table before tightening; do not estimate torque on Grade 8 large-diameter fasteners. Ensure mating threads are clean and free of debris before assembly. Use of a calibrated torque wrench or torque multiplier is strongly recommended for fasteners in this size range.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1-3\/8-12 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 7 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: UNF\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\u003eSystem of Measurement\u003c\/strong\u003e: Inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 3.62 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 451716BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51712796066098,"sku":"451716BR","price":69.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/ffc506d46f262eedd387ac56fe871cb1.jpg?v=1788488659","url":"https:\/\/voomisupply.com\/products\/value-collection-451716br-hex-head-cap-screw-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}