{"product_id":"value-collection-454063pr-hex-head-cap-screw-1-4-28-grade-8","title":"Value Collection 454063PR Hex Head Cap Screw 1\/4-28 Grade 8","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 454063PR is a Grade 8 steel hex head cap screw designed for high-strength fastening applications. It features a 1\/4-28 UNF thread form, a length under head of 3-3\/4 inches, and a zinc yellow dichromate finish that provides corrosion resistance in industrial and mechanical environments. The screw is partially threaded per ASME B18.2.1 standards and carries a tensile strength of 5,450 pounds. It is suitable for use by maintenance technicians, millwrights, HVAC installers, and other trade professionals who require a reliable, standardized inch-system fastener in critical assemblies.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is used in a wide range of industrial, mechanical, and trade applications where a high-strength inch-series fastener is required. Typical uses include equipment mounting, structural brackets, motor and blower assemblies, and general mechanical assembly work. The 1\/4-28 UNF fine thread provides increased thread engagement per inch compared to coarse thread variants, making it well suited for applications requiring precise torque control or resistance to vibration-induced loosening. The zinc yellow dichromate coating offers additional protection in moderately corrosive environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 steel construction with 5,450-pound tensile strength for high-load fastening\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for improved thread engagement and vibration resistance\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank per ASME B18.2.1 standard\u003c\/li\u003e\n  \u003cli\u003eZinc yellow dichromate finish for corrosion resistance\u003c\/li\u003e\n  \u003cli\u003e1\/2-inch hex key size for standard wrench fitment\u003c\/li\u003e\n  \u003cli\u003eInch measurement system  -  compatible with standard SAE tooling\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or new-installation fastener for applications requiring a 1\/4-28 UNF Grade 8 hex head cap screw with a 3-3\/4-inch length under head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified tradesperson using the appropriate 1\/2-inch hex wrench or socket. Ensure mating threads are clean and free of debris before installation. De-energize and lock out all electrical or mechanical systems before fastening components in live assemblies. Always torque to values specified by the equipment manufacturer for the fastener size and grade.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3-3\/4 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\u003eTensile Strength\u003c\/strong\u003e: 5,450 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Zinc Yellow Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 1\/2 inch\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: 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: 454063PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":68385992540466,"sku":"454063PR","price":7283.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/377e3638a9b9c43260c9109fa2f7f636.jpg?v=1793903008","url":"https:\/\/voomisupply.com\/products\/value-collection-454063pr-hex-head-cap-screw-1-4-28-grade-8","provider":"Voomi Supply","version":"1.0","type":"link"}