{"product_id":"osg-1400106405-thread-forming-tap-4-48-unf-cobalt-tin","title":"Osg 1400106405 Thread Forming Tap 4-48 Unf Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400106405 is a thread forming tap in the HY-PRO NRT series, designed for producing internal threads without cutting chips. Operating on a 4-48 UNF thread profile with a modified bottoming chamfer of 2 to 2.5 threads, it displaces material rather than removing it, resulting in stronger thread forms and cleaner blind hole results. Constructed from cobalt high-speed steel and finished with a titanium nitride (TiN) coating, this tap handles demanding applications where tool life and surface hardness matter. Overall length is 1.875 inches with a shank diameter of 0.141 inches. Licensed HVAC technicians, machinists, plumbers, and precision fabricators working with tight-tolerance fastener threads will find this tap well suited to production and repair work.\u003c\/p\u003e\n\u003cp\u003eThe 1400106405 is intended for blind hole threading across a range of ferrous and non-ferrous materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. The right-hand thread direction and H2 thread limit make it appropriate for close-tolerance tapping where dimensional consistency across multiple holes is required. Typical applications include component fabrication, repair threading in mechanical assemblies, and production runs where chip-free thread forming is preferred over conventional cutting taps.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design produces chip-free internal threads, reducing blind hole clogging risk\u003c\/li\u003e\n  \u003cli\u003eCobalt construction provides increased heat and wear resistance compared to standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiN coating extends tool life and reduces friction during forming\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) allows threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit supports close-tolerance 4-48 UNF thread production\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction; compatible with standard tapping equipment and tap handles\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole thread forming in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces requiring a 4-48 UNF internal thread. Material application codes P and N apply.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require the correct tap drill size for the material and desired thread engagement — consult published UNF forming tap drill charts before drilling. Apply appropriate tapping fluid or cutting oil for the workpiece material, particularly when working with stainless steel or hardened steel. Use a calibrated torque-limiting tap handle or CNC tapping cycle with rigid tapping to avoid tap breakage in small-diameter applications. Verify the spindle is properly aligned before engaging the tap to prevent cross-threading or tool deflection.\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 2.5 threads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiN (Titanium Nitride)\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\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\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: 1400106405\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51728536240434,"sku":"1400106405","price":36.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/5b81f4ebafa7f986ea5ff555fdd25775.jpg?v=1788692914","url":"https:\/\/voomisupply.com\/products\/osg-1400106405-thread-forming-tap-4-48-unf-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}