{"product_id":"value-collection-601356pr-set-screw-1-2-20-x-1-3-4-in-cup-point","title":"Value Collection 601356PR Set Screw 1\/2-20 X 1-3\/4 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 601356PR is a 1\/2-20 cup point set screw manufactured from alloy steel to ASTM F912 and ASME\/ANSI B18.3 standards. Set screws are headless fasteners that seat fully within a threaded hole to lock a component — such as a collar, gear, or pulley — onto a shaft without protruding beyond the mating surface. The cup point bites into the shaft surface to resist rotation and axial movement under load. At 1-3\/4 inches in overall length with a 1\/4-inch internal hex drive, this fastener is a standard choice for mechanical assemblies across HVAC equipment, pump sets, fan wheels, and general industrial applications. Licensed trades and maintenance technicians install these as part of routine equipment assembly and repair.\u003c\/p\u003e\u003cp\u003eThis set screw is suited for use wherever a threaded locking fastener is required to secure a rotating or stationary component to a shaft. The 1\/2-20 UNF thread gives fine-pitch engagement suitable for applications requiring precise clamping adjustment. The cup point geometry concentrates clamping force at the shaft contact area, making it appropriate for both hardened and unhardened shaft materials. Typical install scenarios include fan blade hubs, motor shaft collars, valve stems, and mechanical drive components found in residential and light commercial mechanical systems.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCup point concentrates holding force on shaft surface, resisting rotation and axial shift\u003c\/li\u003e\n\u003cli\u003e1\/2-20 UNF fine-thread form for precise torque-down and secure engagement\u003c\/li\u003e\n\u003cli\u003e1-3\/4 inches overall length provides deep thread engagement in thick hubs or collars\u003c\/li\u003e\n\u003cli\u003e1\/4-inch hex key drive — compatible with standard Allen wrenches and hex bit drivers\u003c\/li\u003e\n\u003cli\u003eAlloy steel construction meets ASTM F912 material and mechanical property requirements\u003c\/li\u003e\n\u003cli\u003eConforms to ASME\/ANSI B18.3 dimensional standards for interchangeability\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 replacement or stock set screw for any 1\/2-20 UNF threaded application requiring a cup point headless fastener.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSet screws of this type are installed and removed by licensed mechanics, HVAC technicians, and millwrights using a 1\/4-inch hex key or Allen-style driver. De-energize and lock out all equipment before accessing shaft-mounted components. Thread the fastener in by hand to verify clean thread engagement before applying drive torque. Avoid cross-threading — alloy steel fasteners can seize in softer aluminum or cast-iron housings if misaligned on entry.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20\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: 1-3\/4 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 (Internal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 1\/4 inch (0.2500 inch)\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: ASTM F912\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFastener Standard\u003c\/strong\u003e: ASME\/ANSI B18.3\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: 0.05 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 601356PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51711060705586,"sku":"601356PR","price":2486.21,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1351d66a4845a775a2721ec12e9d77b9.jpg?v=1788474029","url":"https:\/\/voomisupply.com\/products\/value-collection-601356pr-set-screw-1-2-20-x-1-3-4-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}