{"product_id":"value-collection-601241pr-set-screw-1-4-28-x-3in-cup-point","title":"Value Collection 601241PR Set Screw 1\/4-28 X 3in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 601241PR is a cup point set screw designed for mechanical fastening applications where a headless, flush-mount fastener is required. Threaded 1\/4-28 (UNF) with an overall length of 3 inches, this set screw is machined from alloy steel for strength and durability under load. It is driven with a 1\/8-inch hex key and features a cup point tip that bites into mating surfaces to resist rotation and axial movement. Manufactured to ASME\/ANSI B18.3 and ASTM F912 standards, this fastener suits precision mechanical assemblies where dimensional consistency and material integrity are critical. Machinists, millwrights, and maintenance technicians are the primary installers.\u003c\/p\u003e\n\u003cp\u003eCup point set screws in this size range are commonly used to lock collars, pulleys, gears, and sheaves onto shafts in industrial and commercial mechanical systems. The 1\/4-28 fine thread provides strong clamping force with minimal axial movement per rotation, making it well-suited for applications requiring precise adjustment or vibration resistance. This fastener is appropriate for use in HVAC blower assemblies, pump shaft collars, motor couplings, and similar rotating equipment where secure mechanical locking is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCup point geometry bites into shaft surface to resist rotation and axial movement\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF fine thread for precise adjustment and strong clamp load\u003c\/li\u003e\n  \u003cli\u003e3-inch overall length accommodates deeper shaft engagement or thick hub walls\u003c\/li\u003e\n  \u003cli\u003eAlloy steel construction provides high tensile and torsional strength\u003c\/li\u003e\n  \u003cli\u003e1\/8-inch hex drive for standard hex key or Allen wrench installation\u003c\/li\u003e\n  \u003cli\u003eMeets ASME\/ANSI B18.3 and ASTM F912 standards for dimensional and material compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 1\/4-28 UNF cup point set screw per ASME\/ANSI B18.3, suitable for use in any mechanical assembly requiring a headless hex-drive fastener of this thread size and length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed by machinists, millwrights, or maintenance technicians using a 1\/8-inch hex key. Ensure the shaft and bore are clean and free of debris before threading the screw into the tapped hole. Do not overtorque the fastener, as alloy steel set screws can strip tapped threads in softer hub materials. Always de-energize and lockout\/tagout any rotating equipment before servicing shaft-mounted components.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3 inches\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: Hex\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 1\/8 inch (0.1250 inch)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Alloy Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3, ASTM F912\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: 0.01 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: 601241PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51712067240242,"sku":"601241PR","price":960.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/da371b49ebcf14ad0c0baa611a54e450_4ded330b-3c77-4387-938a-41fac90357cc.jpg?v=1788483251","url":"https:\/\/voomisupply.com\/products\/value-collection-601241pr-set-screw-1-4-28-x-3in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}