{"product_id":"osg-1400106500-thread-forming-tap-4-48-unf-cobalt","title":"Osg 1400106500 Thread Forming Tap 4-48 Unf Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400106500 is a thread forming tap designed for creating internal UNF threads without cutting, using material displacement to produce stronger threads with no chips. Built from cobalt high-speed steel with a bright finish, this tap handles the 4-48 UNF thread form and is optimized for blind hole threading applications. The modified bottoming chamfer with 2 to 2.5 chamfered threads allows the tap to reach near the bottom of a blind hole. With an H3 thread limit and Class 3B fit, it meets tight tolerance requirements common in precision assemblies. Licensed HVAC, plumbing, and mechanical trades as well as machining professionals will find this tap suited to production and repair work alike.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for blind hole threading in a range of metallic workpiece materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. The thread forming action, rather than cutting, reduces tap breakage risk in tough materials and produces a work-hardened thread form. It is well suited to CNC tapping centers and manual tapping operations where chip evacuation is a concern. The 4-48 UNF designation makes it appropriate for small-fastener applications in precision components, instrument assemblies, and tight-clearance hardware.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design eliminates chips, reducing breakage risk in blind holes\u003c\/li\u003e\n  \u003cli\u003eCobalt high-speed steel construction for performance in hardened and stainless steel\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer allows threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit with Class 3B fit for tight-tolerance precision assemblies\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, compatible with standard tapping equipment\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement, suitable for conventional tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole threading in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces per Material Application Codes P and N. Part of the OSG HY-PRO NRT Series 14001.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a specific tap drill size larger than a standard cut-tap drill to allow material displacement — verify the correct tap drill diameter for 4-48 UNF forming before drilling. Apply an appropriate tapping fluid or cutting oil for the workpiece material before tapping. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole to prevent tap breakage. Follow applicable shop safety practices and machine guarding requirements when operating tapping equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 48\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2 to 2.5P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.295 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.559 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.110 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.1875 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: HY-PRO NRT 14001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.005 pounds\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: OSG\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1400106500\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51738606764338,"sku":"1400106500","price":32.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/993da9b29adcf17512aed859eb86ef0c.jpg?v=1788801679","url":"https:\/\/voomisupply.com\/products\/osg-1400106500-thread-forming-tap-4-48-unf-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}