{"product_id":"value-collection-101345pr-set-screw-1-4-28-x-1-2-in-cup-point","title":"Value Collection 101345PR Set Screw 1\/4-28 X 1\/2 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION 101345PR is a 1\/4-28 UNF cup point set screw machined from Grade 8 alloy steel. Set screws are fully threaded fasteners with no head — they seat flush or below the surface of the mating part, applying clamping force through the point alone. The cup point digs into the shaft or mating surface to resist rotational and axial movement. This screw is driven with a 1\/8-inch hex key and conforms to ASME\/ANSI B18.3 and ASTM F912 standards. It is used by machinists, millwrights, and maintenance mechanics in precision assembly and repair applications where a headless fastener is required.\u003c\/p\u003e\u003cp\u003eCup point set screws like the 101345PR are common in shaft collars, shaft couplings, pulleys, gears, and sprockets across light industrial and mechanical assembly work. The 1\/4-28 UNF thread provides fine-pitch engagement suited for applications where precise torque control and vibration resistance matter. Grade 8 alloy steel construction delivers high tensile and torsional strength for demanding load conditions. Minimum order quantity for this part is 100 pieces.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eCup point geometry bites into shaft surface for positive rotational and axial hold\u003c\/li\u003e\n\u003cli\u003eGrade 8 alloy steel for high strength in demanding assembly applications\u003c\/li\u003e\n\u003cli\u003e1\/4-28 UNF fine thread for precise engagement and vibration resistance\u003c\/li\u003e\n\u003cli\u003e1\/8-inch hex drive — fits standard hex keys and Allen wrenches\u003c\/li\u003e\n\u003cli\u003eConforms to ASME\/ANSI B18.3 and ASTM F912 dimensional and material standards\u003c\/li\u003e\n\u003cli\u003eHeadless design allows flush or sub-flush installation in counterbored holes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard ASME\/ANSI B18.3 set screw for use in any application requiring a 1\/4-28 UNF cup point headless fastener in alloy steel.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed with a 1\/8-inch hex key torqued by hand or with a T-handle driver. Ensure the mating shaft or surface is clean and free of burrs before seating the cup point. Power down and de-energize any rotating equipment before installing or removing set screws. Apply a thread-locking compound if vibration loosening is a concern in the application.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLength\u003c\/strong\u003e: 1\/2 inches (overall)\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 inches (0.1250 inches)\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: Grade 8\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 100 pieces\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: 101345PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51694096711986,"sku":"101345PR","price":1693.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/8adbcdf060b63ec8ab6071be2833291d.jpg?v=1788320200","url":"https:\/\/voomisupply.com\/products\/value-collection-101345pr-set-screw-1-4-28-x-1-2-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}