{"product_id":"value-collection-101079pr-set-screw-4-40-x-3-8-in-cup-point","title":"Value Collection 101079PR Set Screw 4-40 X 3\/8 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 101079PR is a cup point set screw designed for secure, no-protrusion fastening in mechanical assemblies. Sized at 4-40 UNC thread by 3\/8 inches overall length, this screw is manufactured from Grade 8 alloy steel for high tensile strength and resistance to shear under load. The hex drive accepts a 0.050-inch hex key. It conforms to ASME\/ANSI B18.3 and ASTM F912 dimensional and material standards. This fastener is installed by machinists, maintenance technicians, and mechanical tradespeople across a wide range of industrial and OEM assembly applications.\u003c\/p\u003e\n\u003cp\u003eCup point set screws like the 101079PR are used to lock collars, gears, pulleys, and shaft-mounted components in place without protruding above the mating surface. The cup point bites into the shaft surface to resist rotational and axial movement. This screw is suited for light-duty to medium-duty clamping applications where a recessed hex drive and compact form factor are required. It is commonly specified in HVAC equipment assemblies, pump drives, fan hubs, and precision mechanical devices where flush mounting is critical.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e4-40 UNC thread for fine-pitch engagement in small-diameter applications\u003c\/li\u003e\n  \u003cli\u003eCup point geometry bites into shaft surface to resist axial and rotational movement\u003c\/li\u003e\n  \u003cli\u003eGrade 8 alloy steel construction provides high tensile and shear strength\u003c\/li\u003e\n  \u003cli\u003eHex socket drive accepts a 0.050-inch hex key for recessed installation\u003c\/li\u003e\n  \u003cli\u003eConforms to ASME\/ANSI B18.3 and ASTM F912 standards\u003c\/li\u003e\n  \u003cli\u003eHeadless design sits flush or below the mating surface\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard 4-40 UNC cup point set screw per ASME\/ANSI B18.3, compatible with any tapped 4-40 threaded hole requiring a headless, hex-drive fastener of 3\/8 inches overall length.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation is performed with a 0.050-inch hex key; confirm the key is fully seated before applying torque to avoid rounding the socket. De-energize and lock out any rotating equipment before servicing shaft-mounted components secured by set screws. Do not reuse a set screw that shows deformation at the cup point, as holding force will be compromised. Minimum order quantity for this part is 100 pieces.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3\/8 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDrive Type\u003c\/strong\u003e: Hex Socket\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHex Key Size\u003c\/strong\u003e: 0.050 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePoint Type\u003c\/strong\u003e: Cup\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\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: 101079PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51691551228210,"sku":"101079PR","price":1424.75,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b50dcc48d42ec24705e261635a7b898e.jpg?v=1788286860","url":"https:\/\/voomisupply.com\/products\/value-collection-101079pr-set-screw-4-40-x-3-8-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}