{"product_id":"value-collection-721051pr-flat-socket-cap-screw-5-40","title":"Value Collection 721051PR Flat Socket Cap Screw 5-40","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 721051PR is a flat socket cap screw designed for low-profile fastening applications where a flush or countersunk head is required. Sized at 5-40 UNC x 1.5 inches overall length, it features an 82-degree flat head with a 5\/64 inch hex socket drive. Constructed from alloy steel with a black oxide finish, the fastener offers good hardness and mild corrosion resistance suitable for controlled indoor environments. The shank is partially threaded, allowing for precise clamping force in through-bolt and standoff applications. Licensed trades and precision machinists specify this type of fastener where a standard button or pan head would interfere with mating components.\u003c\/p\u003e\n\u003cp\u003eThis screw is used in mechanical assemblies, jigs, fixtures, tooling plates, and machine frames where a flush-mount fastener is required. The 5-40 thread size targets small precision assemblies common in instrumentation, electronics enclosures, and light mechanical hardware. The partial thread design is appropriate for applications that require an unthreaded shank to bear shear loads or maintain accurate hole alignment. Installation is performed with a 5\/64 inch hex key or T-handle driver.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e82-degree flat head profile allows flush or countersunk installation in mating surfaces\u003c\/li\u003e\n  \u003cli\u003e5-40 UNC thread form for compatibility with standard small-pitch inch-series tapped holes\u003c\/li\u003e\n  \u003cli\u003e5\/64 inch hex socket drive for precise torque application with standard Allen wrenches\u003c\/li\u003e\n  \u003cli\u003ePartially threaded shank supports shear load and accurate part alignment\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides higher tensile strength than standard carbon steel fasteners\u003c\/li\u003e\n  \u003cli\u003eBlack oxide finish reduces light reflection and offers mild surface protection in dry environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as an inch-series replacement or service fastener for assemblies using 5-40 UNC flat socket cap screws per ASME\/ANSI B18.3 and ASTM F835 standards.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a matching countersunk hole to achieve the flush seating an 82-degree flat head demands. Use a calibrated hex key or torque driver sized at 5\/64 inch. Verify the tapped hole thread class matches the fastener before driving to avoid galling or cross-threading. Degrease mating surfaces and inspect threads for damage prior to assembly; black oxide does not provide meaningful corrosion protection in wet or outdoor environments.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1.5 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: 5\/64 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; 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: 721051PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51696031695154,"sku":"721051PR","price":1157.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d4e14fa2f3ded20955a633a001935bb0_58556140-aa96-4c18-8841-0f347e12ecf9.jpg?v=1788339850","url":"https:\/\/voomisupply.com\/products\/value-collection-721051pr-flat-socket-cap-screw-5-40","provider":"Voomi Supply","version":"1.0","type":"link"}