{"product_id":"value-collection-721018pr-flat-socket-cap-screw-2-56","title":"Value Collection 721018PR Flat Socket Cap Screw 2-56","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721018PR is a flat socket cap screw designed for precision fastening applications where a flush or countersunk profile is required. This screw features a 2-56 UNC thread and measures 7\/8 inches in overall length. Constructed from alloy steel with a black oxide finish, it provides corrosion resistance suitable for general industrial and mechanical assembly work. The 82-degree flat head seats flush with the mating surface when installed in a properly chamfered counterbore. Drive engagement is through a hex socket, requiring an appropriately sized hex key or Allen driver for installation and removal.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for use in precision mechanical assemblies, instrument enclosures, light-duty structural connections, and electronic or electromechanical equipment where low-profile, flush-mount fastening is needed. The fine 2-56 thread size makes it common in small-format assemblies including fixtures, jigs, tooling plates, and device housings. The black oxide finish provides mild corrosion inhibition and reduces light reflection, making it appropriate for both industrial and optical or instrumentation environments. Sold in minimum order quantities of 100 units.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head seats flush when countersunk correctly, eliminating protrusion above the mating surface\u003c\/li\u003e\n  \u003cli\u003eHex socket drive for high torque application in confined spaces\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides strength appropriate for small-fastener assemblies\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for mild corrosion resistance and low-reflectivity appearance\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for positive clamping force in through-hole and blind applications\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME\/ANSI B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC 2-56 flat socket cap screw for use in any application requiring an 82-degree countersunk hex-socket fastener per ASME\/ANSI B18.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by a machinist, assembler, or maintenance technician using a calibrated hex key or Allen driver sized for the socket drive. The mating part must be drilled and countersunk to the correct 82-degree angle and diameter to achieve proper flush seating. Power down all equipment and relieve any mechanical tension before replacing fasteners in live assemblies. Do not exceed the rated drive engagement depth, as stripping the socket in small-format alloy steel screws is the primary failure mode during over-torquing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-56\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 7\/8 inches (overall length)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHead Type\u003c\/strong\u003e: 82-degree Flat\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\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: 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 F835\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  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\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: 721018PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51712921567538,"sku":"721018PR","price":2843.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_23365dd3-d2ae-4dcf-8d90-412f26945c46.jpg?v=1788489532","url":"https:\/\/voomisupply.com\/products\/value-collection-721018pr-flat-socket-cap-screw-2-56","provider":"Voomi Supply","version":"1.0","type":"link"}