{"product_id":"value-collection-101058pr-set-screw-3-48-x-1-8-in-cup-point","title":"Value Collection 101058PR Set Screw 3-48 X 1\/8 in Cup Point","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe VALUE COLLECTION 101058PR is a Grade 8 alloy steel cup point set screw sized 3-48 x 1\/8 inches overall length. Set screws are headless fasteners used to secure a component — such as a collar, gear, or pulley — against a shaft by bearing directly into the shaft surface. The cup point tip bites into the mating surface for firm, positive holding. Drive is internal hex (Allen key), requiring a 0.050-inch hex key for installation. Thread standard is UNC, conforming to ASME\/ANSI B18.3 and ASTM F912. These fasteners are installed by machinists, millwrights, and maintenance technicians in mechanical assemblies requiring precise axial and rotational locking.\u003c\/p\u003e\n\u003cp\u003eThis set screw is suited for light-duty mechanical applications where a small-diameter, fine-thread fastener is needed to lock rotating or sliding components in position. The 3-48 UNC thread is among the smallest standard inch-series thread sizes and is common in instrument assemblies, small motors, miniature couplings, and precision equipment. The cup point profile distributes clamping force into a small contact area, providing reliable holding in both ferrous and non-ferrous shaft materials. These are sold individually but require a minimum order quantity of 100 pieces.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eGrade 8 alloy steel construction for high tensile strength in a small form factor\u003c\/li\u003e\n  \u003cli\u003eCup point tip bites into shaft surface for positive, slip-resistant hold\u003c\/li\u003e\n  \u003cli\u003eInternal hex (Allen) drive with 0.050-inch hex key size\u003c\/li\u003e\n  \u003cli\u003e3-48 UNC thread conforms to ASME\/ANSI B18.3 and ASTM F912 standards\u003c\/li\u003e\n  \u003cli\u003eHeadless design allows full countersinking flush with or below the workpiece surface\u003c\/li\u003e\n  \u003cli\u003eFractional inch sizing — 1\/8-inch overall length for compact assemblies\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned as a standard UNC inch-series set screw for use in any mechanical assembly requiring a 3-48 threaded socket, including instrument enclosures, small-diameter shaft collars, miniature couplings, and precision equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation requires a 0.050-inch hex key (Allen wrench); use of an incorrectly sized key risks rounding the drive socket. Torque to the assembly specification for the application — do not overtighten, as small-diameter alloy set screws are susceptible to torsional fracture. Ensure the mating threaded hole is clean and free of debris before threading in. Where used in vibrating equipment, a thread-locking compound appropriate for the operating temperature may help prevent loosening.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3-48\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: 0.125 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: Internal Hex\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\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: 101058PR\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51699513131314,"sku":"101058PR","price":3018.73,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d5dccb72336d0bddd36ec2b4763c4699.jpg?v=1788376766","url":"https:\/\/voomisupply.com\/products\/value-collection-101058pr-set-screw-3-48-x-1-8-in-cup-point","provider":"Voomi Supply","version":"1.0","type":"link"}