{"product_id":"value-collection-581450pr-hex-socket-cap-screw-5-16-24-unf","title":"Value Collection 581450PR Hex Socket Cap Screw 5\/16-24 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581450PR is a partially threaded hex socket cap screw designed for high-strength fastening applications across mechanical, structural, and industrial assemblies. It features a 5\/16-24 UNF thread size with a 3-1\/2 inch length under the head and is driven by a 1\/4 inch hex key. Constructed from alloy steel with a black oxide finish, this cap screw delivers the tensile strength and corrosion resistance required in demanding service environments. It meets ASME\/ANSI B18.3 and ASTM A574 standards, confirming its suitability for load-bearing fastener applications. Machinists, millwrights, and maintenance technicians commonly specify this type of fastener for equipment assembly and repair work.\u003c\/p\u003e\n\u003cp\u003eThis cap screw is suited for use in general industrial machinery, HVAC equipment frames, pump and motor mounts, and other mechanical assemblies requiring a fine-thread socket head fastener. The 5\/16-24 UNF fine thread pitch provides higher thread engagement and improved resistance to vibration loosening compared to coarse-thread equivalents, making it a preferred choice in applications subject to dynamic loading. The partial threading allows the unthreaded shank to bear shear loads, which is useful in precision-fit applications and close-tolerance bores.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5\/16-24 UNF fine thread for high thread engagement and vibration resistance\u003c\/li\u003e\n  \u003cli\u003e3-1\/2 inch length under head with partial threading for shear load capacity\u003c\/li\u003e\n  \u003cli\u003e1\/4 inch hex drive for use with standard Allen keys and hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 high-strength requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduced light reflection\u003c\/li\u003e\n  \u003cli\u003eConforms to 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 suitable for any application requiring a 5\/16-24 UNF partially threaded fastener with a 1\/4 inch hex drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed using a 1\/4 inch hex key or socket hex bit driver. Ensure mating threaded holes are clean, free of debris, and properly tapped to 5\/16-24 UNF specification before installation. Apply thread lubricant or thread-locking compound as required by the assembly specification. Power down and de-energize any equipment before accessing fastener locations on live machinery.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-24 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 3-1\/2 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: 1\/4 inch\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\u003eWeight\u003c\/strong\u003e: 0.08 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: 581450PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51716277141810,"sku":"581450PR","price":1494.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/38b62f3ba97f28c8423f90d892a56372.jpg?v=1788523869","url":"https:\/\/voomisupply.com\/products\/value-collection-581450pr-hex-socket-cap-screw-5-16-24-unf","provider":"Voomi Supply","version":"1.0","type":"link"}