{"product_id":"value-collection-581098pr-hex-socket-cap-screw-3-56-unf","title":"Value Collection 581098PR Hex Socket Cap Screw 3-56 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 581098PR is a hex socket cap screw designed for precision fastening applications requiring a compact, high-strength threaded connection. Sized at 3-56 UNF with a 5\/16-inch length under head, this screw is fully threaded and driven with a 5\/64-inch hex key. It is manufactured from alloy steel and finished with a black oxide coating, which provides moderate corrosion resistance and reduces light reflection. This fastener meets ASME\/ANSI B18.3 and ASTM A574 dimensional and mechanical standards, making it suitable for applications where a recognized fastener specification is required.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in light machinery, instrumentation, electronic assemblies, and precision mechanical components where a fine-threaded, small-diameter cap screw is specified. The 3-56 UNF thread form is common in tight-tolerance assemblies found in industrial equipment, fixtures, and tooling. Installation is typically performed by a machinist, technician, or mechanical assembler using a 5\/64-inch hex key or Allen driver. The black oxide finish suits applications where a low-profile, non-reflective fastener appearance is preferred.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e3-56 UNF fully threaded profile for fine-pitch engagement in precision assemblies\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch length under head accommodates standard light-duty clamping depths\u003c\/li\u003e\n  \u003cli\u003e5\/64-inch hex drive for use with standard Allen keys or hex bit drivers\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASTM A574 mechanical requirements\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and low-glare appearance\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-dimension replacement or maintenance fastener for assemblies specifying a 3-56 UNF hex socket cap screw per ASME\/ANSI B18.3 and ASTM A574.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a calibrated 5\/64-inch hex key or driver to avoid rounding the socket drive. Ensure mating threads are clean and free of debris before assembly. Follow applicable torque guidelines from a recognized fastener reference for 3-56 alloy steel cap screws. Black oxide finish is not a heavy-duty corrosion barrier; use thread-locking compound or appropriate lubricant if the application requires it.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-56 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength Under Head\u003c\/strong\u003e: 5\/16 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully 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: 5\/64 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\u003eStandards\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM A574\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: 581098PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693848789298,"sku":"581098PR","price":2863.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66f425cb03316c50fd5ecfe45769a508.jpg?v=1788318153","url":"https:\/\/voomisupply.com\/products\/value-collection-581098pr-hex-socket-cap-screw-3-56-unf","provider":"Voomi Supply","version":"1.0","type":"link"}