{"product_id":"osg-1400126401-thread-forming-tap-1-4-20-unc-cobalt","title":"Osg 1400126401 Thread Forming Tap 1\/4-20 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400126401 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads in materials where chip-free threading is required. Unlike cutting taps, this tool displaces material rather than removing it, producing stronger threads with no chips to clear from blind holes. Built from cobalt high-speed steel with a steam oxide coating, it handles demanding materials including alloy steel, carbon steel, hardened steel, stainless steel, aluminum, and die steel. The modified bottoming chamfer provides 2 to 2.5 chamfered threads, allowing threading close to the bottom of a blind hole. Thread limit is H6, suitable for close-tolerance work.\u003c\/p\u003e\u003cp\u003eThis tap is intended for blind hole threading applications in production and maintenance environments. The 1\/4-20 UNC thread form is one of the most common fastener sizes in North American manufacturing and fabrication, making this tap a staple for machine shops, toolrooms, and field maintenance crews working on steel and aluminum assemblies. The right-hand thread direction and standard shank geometry are compatible with conventional tapping heads, CNC machine tool holders, and tap wrenches. It is installed by machinists, toolroom technicians, and maintenance professionals.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design eliminates chips, reducing tap breakage risk in blind holes\u003c\/li\u003e\n\u003cli\u003eCobalt HSS construction provides heat and wear resistance in tough alloys and stainless steel\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and improves lubrication retention during tapping\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer allows threading within 2 to 2.5 threads of hole bottom\u003c\/li\u003e\n\u003cli\u003eH6 thread limit supports close-tolerance thread fits\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction compatible with standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in blind hole threading applications across alloy steel, carbon steel, hardened steel, stainless steel, aluminum, and die steel workpieces. Material application codes P and N confirm suitability for steel and non-ferrous material groups.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require higher torque than cutting taps and must be used with a suitable tapping fluid or cutting oil rated for the workpiece material. Secure the workpiece and ensure the tap is properly aligned before engagement to avoid cross-threading or tap breakage. For CNC or machine tapping, verify spindle speed and feed rate are appropriate for the workpiece material and tap diameter. Always follow shop safety practices and consult material-specific tapping charts for recommended speeds.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\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\u003eThread Limit\u003c\/strong\u003e: H6\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\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\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.594 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.933 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Materials\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Die Steel, Hardened Steel, Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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: 0.033 pounds\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\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: 1400126401\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51731822379314,"sku":"1400126401","price":30.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9e0a7535aeb52c331c9ab34d6077839_ca76b177-55b6-4ca6-80ff-5a4362f90783.jpg?v=1788735307","url":"https:\/\/voomisupply.com\/products\/osg-1400126401-thread-forming-tap-1-4-20-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}