{"product_id":"value-collection-721256pr-flat-socket-cap-screw-1-2-20","title":"Value Collection 721256PR Flat Socket Cap Screw 1\/2-20","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721256PR is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. It features a 1\/2-20 UNF thread and measures 2.5 inches in overall length. The 82-degree flat head seats flush with or below the work surface, eliminating protrusion in assembled components. Driven by a 5\/16-inch hex socket, this screw is partially threaded and manufactured from alloy steel with a black oxide finish for corrosion resistance. It is installed by licensed tradespeople, maintenance technicians, and industrial assembly workers in mechanical, structural, and equipment fabrication applications.\u003c\/p\u003e\n\u003cp\u003eThis fastener is suited for use in machine assemblies, tooling fixtures, structural frames, and industrial equipment where a low-profile countersunk fastener is required. The UNF thread pitch provides fine-thread engagement, making it appropriate for high-strength applications and thin-material assemblies where vibration resistance is a priority. The partial thread shank is used where shank bearing strength or alignment is needed in through-bolt applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head seats flush in standard countersunk holes\u003c\/li\u003e\n  \u003cli\u003e5\/16-inch hex socket drive for precise torque application\u003c\/li\u003e\n  \u003cli\u003e1\/2-20 UNF fine-thread for high-strength and vibration-resistant fastening\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for shank-bearing and alignment applications\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASME\/ANSI B18.3 and ASTM F835 standards\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides mild corrosion resistance and reduces light reflection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard-service fastener for industrial machinery, structural assemblies, and equipment requiring a 1\/2-20 UNF flat socket cap screw with an 82-degree countersink profile.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 5\/16-inch hex key or socket driver. Ensure the mating countersink is machined to an 82-degree included angle to achieve proper head seating. De-energize or lock out all equipment before replacing fasteners in powered assemblies. Follow applicable ASME and ASTM guidelines for torque values based on fastener grade and application requirements.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\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\u003eDrive Size\u003c\/strong\u003e: 5\/16 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: 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 and 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\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: 721256PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51697742676274,"sku":"721256PR","price":3365.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_570eb5a5-35dd-47a4-ab85-5162d7f0343e.jpg?v=1788354235","url":"https:\/\/voomisupply.com\/products\/value-collection-721256pr-flat-socket-cap-screw-1-2-20","provider":"Voomi Supply","version":"1.0","type":"link"}