{"product_id":"value-collection-721261pr-flat-socket-cap-screw-5-8-11","title":"Value Collection 721261PR Flat Socket Cap Screw 5\/8-11","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721261PR is a flat socket cap screw designed for flush or countersunk fastening applications in mechanical assemblies. The 82-degree flat head seats flush with or below the work surface, making it a common choice where a low-profile joint is required. The hex socket drive accepts a 3\/8-inch hex key for installation and removal. Constructed from alloy steel with a black oxide finish, this fastener offers solid mechanical strength and moderate corrosion resistance in dry or lightly oiled environments. It is fully threaded at 5\/8-11 UNC and measures 2-3\/4 inches in overall length. Maintenance technicians, millwrights, and general contractors regularly install this screw type across a wide range of structural and mechanical applications.\u003c\/p\u003e\n\u003cp\u003eThis fastener fits countersunk hole patterns machined to ASME\/ANSI B18.3 specifications and is manufactured to ASTM F835 standards. It is used in machinery frames, jigs, fixtures, structural brackets, and fabricated assemblies where a flush fastener surface is needed. The 5\/8-11 UNC thread is a coarse-thread standard common in general industrial fabrication and heavy equipment maintenance. Installation is straightforward using standard hex key tooling in a pre-drilled and countersunk pilot hole.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head for flush or below-surface installation in countersunk applications\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch hex socket drive for high-torque engagement with standard Allen keys\u003c\/li\u003e\n  \u003cli\u003eFully threaded 5\/8-11 UNC coarse-thread profile for broad compatibility with standard nuts and tapped holes\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction for high tensile and shear strength in demanding assemblies\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish provides moderate corrosion resistance and reduces light reflection in finished assemblies\u003c\/li\u003e\n  \u003cli\u003eManufactured to ASME\/ANSI B18.3 and ASTM F835 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 flat socket cap screw for use in countersunk holes with 5\/8-11 UNC tapped threads or matching nuts across general industrial and mechanical fabrication applications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a 3\/8-inch hex key or Allen driver in a properly countersunk pilot hole machined to the 82-degree seat angle. Ensure the mating hole is tapped to 5\/8-11 UNC before installation. De-energize or lock out any machinery before replacing fasteners in live equipment per applicable OSHA lockout\/tagout procedures. Do not overtighten; follow the torque specifications published in ASME or the equipment manufacturer's service documentation for this thread size and grade.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-11 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 2-3\/4 inches (overall)\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: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreading\u003c\/strong\u003e: Fully 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\u003eThread Standard\u003c\/strong\u003e: UNC\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: 721261PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51693223641394,"sku":"721261PR","price":40.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f73b7ae6d62d22654c4395affa3413a9.jpg?v=1788309253","url":"https:\/\/voomisupply.com\/products\/value-collection-721261pr-flat-socket-cap-screw-5-8-11","provider":"Voomi Supply","version":"1.0","type":"link"}