{"product_id":"value-collection-581410pr-hex-socket-cap-screw-1-4-28-unf","title":"Value Collection 581410PR Hex Socket Cap Screw 1\/4-28 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581410PR is a partially threaded hex socket cap screw designed for high-strength fastening in precision assemblies and structural applications. Manufactured from alloy steel with a black oxide finish, this fastener meets ASME\/ANSI B18.3 and ASTM A574 standards, confirming its suitability for demanding mechanical and industrial environments. The 1\/4-28 UNF thread form provides fine-pitch engagement for applications where vibration resistance and close-tolerance fit are required. A 3\/16-inch hex drive socket is required for installation. The 4-inch length under head accommodates deeper joint stacks or thicker material assemblies where standard-length screws fall short.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for use in machinery, fixtures, tooling, and fabricated assemblies where fine-thread engagement and a clean, low-profile cap head are specified. The partial threading allows for shank engagement through clearance holes before threading into a tapped receiver, a common configuration in machinery and structural bolting. Typical installers include machinists, millwrights, maintenance technicians, and mechanical contractors working in industrial and commercial environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for vibration-resistant, close-tolerance fastening\u003c\/li\u003e\n  \u003cli\u003e4-inch length under head accommodates deep or multi-layer assemblies\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 for high tensile strength\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduced light reflection\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for shear-load applications and clearance-hole pass-through\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 dimensional standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 hex socket cap screw for use in any application calling for a 1\/4-28 UNF partially threaded fastener with a 4-inch length under head.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a 3\/16-inch hex key or socket drive; verify proper torque using a calibrated torque wrench per the joint design specification. Ensure the receiving thread is clean and free of debris before engagement to avoid galling the alloy steel threads. For assemblies subject to vibration, consider thread-locking compound or a locking insert as specified by the design engineer. Follow applicable fastener installation standards and facility safety procedures when working with high-strength fasteners in load-bearing joints.\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: 4 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Partially Threaded\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Size\u003c\/strong\u003e: 3\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFinish\u003c\/strong\u003e: Black Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM A574\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161501\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.06 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: 581410PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716477026610,"sku":"581410PR","price":9577.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0037bb9f53b28aadcb6b266e74226cd3.jpg?v=1788526636","url":"https:\/\/voomisupply.com\/products\/value-collection-581410pr-hex-socket-cap-screw-1-4-28-unf","provider":"Voomi Supply","version":"1.0","type":"link"}