{"product_id":"value-collection-454066ps-hex-head-cap-screw-1-4-28-x-5-in","title":"Value Collection 454066PS Hex Head Cap Screw 1\/4-28 X 5 in","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 454066PS is a partially threaded hex head cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. Manufactured from Grade 8 steel with a zinc yellow dichromate finish, this screw delivers superior tensile strength and corrosion resistance compared to lower-grade fasteners. The 1\/4-28 UNF thread specification provides fine-thread engagement suited to precision assemblies where vibration resistance and tight tolerances matter. At 5 inches in length under the head, it is well suited to deeper stack-ups requiring a longer grip length. Installation is driven with a 7\/16-inch hex key or wrench.\u003c\/p\u003e\n\u003cp\u003eThis fastener is used across a broad range of trade and industrial applications including HVAC equipment assembly, electrical enclosure mounting, plumbing fixture brackets, and general mechanical fabrication. The partially threaded shank provides a smooth bearing surface in the grip area, which is important when fastening through clearance holes where thread engagement is only needed at the nut or tapped hole end. It conforms to ASME B18.2.1 and SAE J429 standards, making it appropriate for use in code-compliant assemblies requiring documented material and dimensional standards.\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\u003eZinc yellow dichromate finish provides corrosion and oxidation resistance\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for superior vibration resistance and precise engagement\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank maintains a smooth grip section for clearance-hole applications\u003c\/li\u003e\n  \u003cli\u003eMeets ASME B18.2.1 and SAE J429 dimensional and material standards\u003c\/li\u003e\n  \u003cli\u003e7\/16-inch hex drive compatible with standard wrenches and sockets\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard inch-series UNF hex head cap screw compatible with any 1\/4-28 tapped hole or standard hex nut per ASME B18.2.1 and SAE J429 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by mechanical technicians, millwrights, or trade professionals using a 7\/16-inch wrench or socket. Always confirm the mating thread is clean, undamaged, and the correct 1\/4-28 UNF specification before installation. De-energize or lock out any equipment before fastening components on live systems. Do not substitute a coarse-thread nut or tapped hole for this fine-thread fastener, as thread form mismatch will damage both components.\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 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5 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: Zinc Yellow Dichromate\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 7\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandards\u003c\/strong\u003e: ASME B18.2.1, SAE J429\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: 0.0726 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\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: 454066PS\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701168177458,"sku":"454066PS","price":1228.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/aa56e1c92c7dcc49b3b7d2c32c291e5a.jpg?v=1788399172","url":"https:\/\/voomisupply.com\/products\/value-collection-454066ps-hex-head-cap-screw-1-4-28-x-5-in","provider":"Voomi Supply","version":"1.0","type":"link"}