{"product_id":"value-collection-721273br-flat-socket-cap-screw-5-8-18","title":"Value Collection 721273BR Flat Socket Cap Screw 5\/8-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721273BR is a flat socket cap screw designed for countersunk fastening applications in metal assemblies and mechanical components. It features an 82-degree flat head with a 3\/8-inch hex socket drive, allowing flush or below-surface installation. The screw measures 5\/8-18 (UNF) thread by 1 inch overall length and is fully threaded. Constructed from alloy steel with a black oxide finish, it provides good corrosion resistance and is suitable for use in machinery, tooling fixtures, and structural assemblies where a low-profile fastened joint is required. This fastener is installed by machinists, millwrights, and maintenance technicians.\u003c\/p\u003e\n\u003cp\u003eThis flat socket cap screw is used in applications requiring a flush or recessed fastener head, such as machine tool assemblies, jigs, fixtures, and precision mechanical components. The UNF (Unified National Fine) thread pitch of 5\/8-18 provides strong thread engagement and is preferred in applications where fine adjustment or higher clamping force is needed compared to coarse thread alternatives. The black oxide finish reduces light reflection and offers mild corrosion protection in controlled environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head profile for flush or countersunk installation\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch hex socket drive for precise torque application with standard Allen keys\u003c\/li\u003e\n  \u003cli\u003e5\/8-18 UNF fully threaded for maximum thread engagement along the full 1-inch length\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction meets ASME\/ANSI B18.3 and ASTM F835 fastener standards\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for mild corrosion resistance and reduced surface reflection\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an OEM-style replacement or standard-fit fastener for applications requiring a 5\/8-18 UNF flat socket cap screw per ASME\/ANSI B18.3 and ASTM F835 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstall using a 3\/8-inch hex key or Allen socket driver. Ensure the mating countersink is machined to an 82-degree angle to achieve proper head seating and clamping load. Always de-energize or lock out equipment before replacing fasteners on powered machinery. Torque to values specified by the equipment manufacturer or applicable engineering standards for the fastener grade and joint material.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/8-18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1 inch (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 inch\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\/Coating\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\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: 721273BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690536599858,"sku":"721273BR","price":22.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_05b48a83-e9d3-4994-976e-9a656f1a40ad.jpg?v=1788271229","url":"https:\/\/voomisupply.com\/products\/value-collection-721273br-flat-socket-cap-screw-5-8-18","provider":"Voomi Supply","version":"1.0","type":"link"}