{"product_id":"value-collection-409146br-set-screw-7-8-9-x-4-5-in-cup-point","title":"Value Collection 409146BR Set Screw 7\/8-9 X 4.5 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 409146BR is a cup point set screw designed for mechanical fastening applications where a headless, flush-mount fastener is required. Manufactured from Grade 2 alloy steel, this screw measures 7\/8-9 UNC thread by 4.5 inches in length, measured under the head. The square drive allows for positive torque transfer with minimal cam-out. Cup point geometry bites into the mating surface to resist axial and rotational movement. Machinists, millwrights, and mechanical assemblers install this type of fastener to secure collars, hubs, pulleys, and gears onto shafts.\u003c\/p\u003e\n\u003cp\u003eThis set screw is suited for use in industrial and commercial mechanical assemblies. Common applications include shaft-collar retention, pulley and sprocket locking, and positioning fixtures. The UNC thread form is standard across North American tooling and hardware, making this screw compatible with a wide range of tapped holes in metal components. It is used in both OEM manufacturing environments and maintenance and repair operations where frequent component adjustment or removal is needed.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e7\/8-9 UNC thread form for compatibility with standard North American tapped holes\u003c\/li\u003e\n  \u003cli\u003eCup point tip bites into shaft surface to resist slippage under load\u003c\/li\u003e\n  \u003cli\u003eSquare drive allows high-torque installation with a square-key wrench\u003c\/li\u003e\n  \u003cli\u003eGrade 2 alloy steel construction provides solid strength for general mechanical applications\u003c\/li\u003e\n  \u003cli\u003eHeadless design sits flush or below the surface of the tapped hole\u003c\/li\u003e\n  \u003cli\u003e4.5-inch length under head accommodates deep-engagement fastening requirements\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC set screw for use in any tapped 7\/8-9 hole in mechanical assemblies requiring a cup point, headless fastener.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a square-key wrench sized to match the drive recess. Ensure the mating tapped hole is clean and free of debris before threading the screw. Apply thread-locking compound or follow engineering specifications for preload as required by the application. Do not exceed the rated torque range for Grade 2 alloy steel to avoid thread damage or screw failure.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/8-9\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: 4.5 inches (measured under head)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Cup\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Square\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMeasurement Type\u003c\/strong\u003e: Fractional Inch\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.02 pounds\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 31161505\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: 409146BR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51701554708786,"sku":"409146BR","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9d49ead60e67d88d5bd0796290f18399.jpg?v=1788401362","url":"https:\/\/voomisupply.com\/products\/value-collection-409146br-set-screw-7-8-9-x-4-5-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}