{"product_id":"value-collection-d39109-hex-cap-screw-1-2-13-x-2-1-4-in-grade-8","title":"Value Collection D39109 Hex Cap Screw 1\/2-13 X 2-1\/4 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION D39109 is a Grade 8 steel hex head cap screw with a 1\/2-13 UNC thread and a 2-1\/4 inch length under head. This partially threaded fastener carries a zinc yellow dichromate finish, which provides corrosion resistance and a distinctive yellow appearance for easy identification. It meets ASME B18.2.1 dimensional standards, making it a reliable choice for structural and high-strength bolted assemblies. Machinists, millwrights, and maintenance technicians reach for Grade 8 hex cap screws when joint integrity and high tensile strength are the primary requirements.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for industrial maintenance, equipment assembly, and structural fabrication applications where high-strength inch-series fasteners are specified. The 1\/2-13 UNC thread is one of the most common coarse-thread sizes in inch-series hardware, found in machine frames, brackets, flanges, and general mechanical assemblies across manufacturing, construction, and heavy equipment service environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction provides high tensile strength for demanding bolted joints\u003c\/li\u003e\n  \u003cli\u003e1\/2-13 UNC coarse thread for broad compatibility with standard inch-series nuts and tapped holes\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank allows for shear-bearing load applications\u003c\/li\u003e\n  \u003cli\u003eZinc yellow dichromate finish offers corrosion resistance and grade identification\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.2.1 dimensional standards\u003c\/li\u003e\n  \u003cli\u003e2-1\/4 inch length measured under head per standard length measurement convention\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\/2-13 UNC nuts, washers, and tapped holes in structural, industrial, and mechanical assembly applications requiring Grade 8 fastener strength.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic, millwright, or technician familiar with high-strength fastener practices. Always use the correct grade of nut and hardened washer to match the Grade 8 fastener. Verify that mating threads are clean and undamaged before installation. Do not mix inch and metric hardware or substitute lower-grade fasteners in Grade 8 applications.\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\u003eLength Under Head\u003c\/strong\u003e: 2-1\/4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFull or Partial Threading\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 Coating\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\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: 0.01 pounds\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: D39109\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701866791218,"sku":"D39109","price":24.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/87a18bc647f26a24c1d07701f7a10fae.jpg?v=1788406244","url":"https:\/\/voomisupply.com\/products\/value-collection-d39109-hex-cap-screw-1-2-13-x-2-1-4-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}