{"product_id":"value-collection-721555br-flat-socket-cap-screw-5-8-11","title":"Value Collection 721555BR Flat Socket Cap Screw 5\/8-11","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721555BR is a flat socket cap screw designed for fastening applications that require a flush or countersunk head profile. It features an 82-degree flat head with a 3\/8-inch hex socket drive and is manufactured from alloy steel with a black oxide finish. The 5\/8-11 UNC thread and 6-1\/2-inch overall length make it well suited for heavy-duty mechanical assemblies where a low-profile head is required. This fastener is partially threaded and meets ASME\/ANSI B18.3 and ASTM F835 standards. It is installed by machinists, millwrights, and maintenance technicians across industrial and manufacturing environments.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in applications where the fastener head must sit flush with or below the mating surface, such as machine frames, fixtures, tooling plates, and structural assemblies. The UNC thread form is standard in inch-system mechanical work. The black oxide finish provides mild corrosion resistance and reduces light reflection in precision equipment and tooling applications.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head profile seats flush in countersunk holes\u003c\/li\u003e\n  \u003cli\u003e3\/8-inch hex socket drive accepts standard Allen or hex key tooling\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction for high tensile strength in demanding applications\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for mild corrosion resistance and low-reflectance appearance\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for controlled clamping and alignment\u003c\/li\u003e\n  \u003cli\u003eMeets 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 inch-system flat socket cap screw for use in any application requiring a 5\/8-11 UNC threaded countersunk fastener per ASME\/ANSI B18.3 specifications.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a correctly sized countersunk hole to match the 82-degree head angle. A 3\/8-inch hex key or Allen driver should be used to drive this fastener to the appropriate torque for the joint material and application. Always ensure the mating threads and countersink are clean and free of debris before installation. Torque to values specified by the applicable engineering standard or equipment manufacturer for 5\/8-11 alloy steel fasteners.\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\u003eOverall Length\u003c\/strong\u003e: 6-1\/2 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: 3\/8 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\u003eThread Standard\u003c\/strong\u003e: UNC\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: 721555BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51717667291442,"sku":"721555BR","price":15.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_e59cd3d0-ad9d-4620-a67a-2a2f54a12247.jpg?v=1788544154","url":"https:\/\/voomisupply.com\/products\/value-collection-721555br-flat-socket-cap-screw-5-8-11","provider":"Voomi Supply","version":"1.0","type":"link"}