{"product_id":"value-collection-99116-hex-head-cap-screw-1-2-13-x-4-in-grade-8","title":"Value Collection 99116 Hex Head Cap Screw 1\/2-13 X 4 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 99116 is a Grade 8 steel hex head cap screw with a 1\/2-13 UNC thread and a 4-inch length under head. Partially threaded and left uncoated (bright finish), this fastener is built for high-strength bolted assemblies where clamping load and shear resistance matter. Grade 8 steel delivers significantly higher tensile and proof strength than Grade 5 or Grade 2 fasteners, making it a standard choice for structural, mechanical, and heavy-equipment applications. It conforms to ASME B18.2.1 dimensional standards, ensuring consistent head geometry and thread form across the lot.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in industrial, commercial, and agricultural equipment assembly, structural steel connections, and general mechanical fabrication requiring a high-strength inch-series fastener. The 1\/2-13 UNC thread is one of the most common coarse-thread sizes in North American trade work, fitting standard nuts, inserts, and tapped holes of the same designation. The partial threading allows for a smooth shank section that improves shear load distribution in bolted joint applications. Maintenance mechanics, millwrights, and fabricators regularly specify this fastener configuration for critical bolted connections.\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 strength\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC coarse thread, partially threaded with smooth shank section\u003c\/li\u003e\n  \u003cli\u003e4-inch length under head to accommodate thick structural members\u003c\/li\u003e\n  \u003cli\u003eBright\/uncoated finish — suitable for indoor or controlled-environment use\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.2.1 for consistent head and thread dimensions\u003c\/li\u003e\n  \u003cli\u003eSold in packages of 25 per lot\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with standard 1\/2-13 UNC hex nuts, lock nuts, and tapped holes conforming to UNC inch-series thread standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by mechanics, millwrights, or maintenance technicians using a standard hex wrench or impact driver with the appropriate 3\/4-inch hex socket. Always confirm the mating nut or tapped hole matches the 1\/2-13 UNC thread specification before assembly. Grade 8 fasteners should be torqued using a calibrated torque wrench per the applicable engineering specification or equipment service manual for the joint being assembled. Bright-finish fasteners are not corrosion-resistant — evaluate coating requirements before use in wet or outdoor environments.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-13\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: 4 inches\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\u003eThreading\u003c\/strong\u003e: Partially Threaded\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\u003ePackage Quantity\u003c\/strong\u003e: 25\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: 99116\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51706457325874,"sku":"99116","price":48.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/57d9970eba95c6d5b8755d5b4b0da079.jpg?v=1788434713","url":"https:\/\/voomisupply.com\/products\/value-collection-99116-hex-head-cap-screw-1-2-13-x-4-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}