{"product_id":"value-collection-721176pr-flat-socket-cap-screw-5-16-18","title":"Value Collection 721176PR Flat Socket Cap Screw 5\/16-18","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721176PR is a flat socket cap screw designed for flush or countersunk fastening applications in metal assemblies. The 82-degree flat head seats fully into a countersunk hole, keeping the mating surface smooth and unobstructed. Drive engagement is through a 3\/16-inch hex socket. The fastener is manufactured from alloy steel with a black oxide finish, which provides moderate corrosion resistance and reduces light reflection in service environments. The 5\/16-18 UNC thread and 3-1\/2-inch overall length make this screw suited for moderate-depth assemblies where a partially threaded shank is required. Sold in multiples of 10.\u003c\/p\u003e\n\u003cp\u003eThis flat socket cap screw is used in general industrial, mechanical, and structural assembly work where a recessed, low-profile head is needed. The partially threaded shank allows the unthreaded portion to act as a shoulder, improving alignment and shear resistance in bolted joints. Typical applications include machine frames, tooling fixtures, jigs, and fabricated metal components. The black oxide finish suits indoor or protected environments. Installation requires a 3\/16-inch hex key or socket drive.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head profile for flush countersunk seating\u003c\/li\u003e\n  \u003cli\u003e3\/16-inch hex socket drive for positive torque engagement\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank for improved joint alignment and shear resistance\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction for high tensile strength\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish for moderate corrosion resistance and low reflectivity\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 UNC replacement or new-installation flat socket cap screw for assemblies requiring a 5\/16-18 thread, 3-1\/2-inch overall length, and an 82-degree countersunk flat head per ASME\/ANSI B18.3.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is typically performed by machinists, millwrights, or maintenance technicians using a 3\/16-inch hex key or T-handle driver. Ensure the mating countersink is machined to an 82-degree included angle before installation. De-energize or lock out any equipment before fastener service per applicable OSHA lockout\/tagout procedures. Do not substitute a hex key with a worn or undersized tip, as this can damage the socket drive recess.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18 UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 3-1\/2 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\/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\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: 0.05 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: 721176PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51721293332786,"sku":"721176PR","price":1843.2,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_babc2b5e-399c-4574-8cb4-df01c903fa6a.jpg?v=1788575991","url":"https:\/\/voomisupply.com\/products\/value-collection-721176pr-flat-socket-cap-screw-5-16-18","provider":"Voomi Supply","version":"1.0","type":"link"}