{"product_id":"value-collection-451105pr-hex-cap-screw-1-2-13-x-8-1-2-in-grade-8","title":"Value Collection 451105PR Hex Cap Screw 1\/2-13 X 8-1\/2 in Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 451105PR is a 1\/2-13 x 8-1\/2 inch hex head cap screw manufactured from Grade 8 steel with a bright, uncoated finish. It features partial threading along the shank and conforms to ASME B18.2.1 dimensional standards. The UNC thread form and high-strength Grade 8 material rating make this fastener suitable for heavy-duty bolted assemblies where tensile strength and dimensional consistency are critical. Machinists, millwrights, and maintenance professionals routinely use this fastener class in structural and mechanical applications requiring a reliable, high-load connection.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is suited for general industrial and mechanical assembly applications where a partially threaded, large-diameter fastener is required. The 8-1\/2 inch length under head accommodates thick stack-ups or long through-bolt configurations in steel fabrication, machinery mounting, and structural connections. The bright uncoated finish is appropriate for indoor or protected environments where corrosion resistance from a coating is not required.\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 thread form with partial threading along the shank\u003c\/li\u003e\n  \u003cli\u003e8-1\/2 inch length under head for long through-bolt applications\u003c\/li\u003e\n  \u003cli\u003eBright uncoated finish — no coating buildup on thread tolerances\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME B18.2.1 dimensional standard\u003c\/li\u003e\n  \u003cli\u003e3\/4 inch hex key size for use with standard open-end or socket wrenches\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard-stock fastener for mechanical and structural assemblies requiring a 1\/2-13 UNC partially threaded hex head cap screw meeting ASME B18.2.1 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified mechanic or millwright using a 3\/4 inch open-end, box, or socket wrench. De-energize and lock out all equipment before fastener replacement in mechanical assemblies. Apply fastener torque values specified by the equipment manufacturer or applicable engineering standard — do not rely on generic torque tables without confirming joint requirements. Grade 8 fasteners should be paired with Grade 8 or equivalent nuts and hardened washers to maintain rated joint integrity.\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: 8-1\/2 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: Bright \/ Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 3\/4 inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDimensional Standard\u003c\/strong\u003e: ASME B18.2.1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.48 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 451105PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51718262948146,"sku":"451105PR","price":19.27,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/750800e561d16b8e042497edaaec16a2.jpg?v=1788551322","url":"https:\/\/voomisupply.com\/products\/value-collection-451105pr-hex-cap-screw-1-2-13-x-8-1-2-in-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}