{"product_id":"osg-1400126201-thread-forming-tap-1-4-20-unc-cobalt","title":"Osg 1400126201 Thread Forming Tap 1\/4-20 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400126201 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal 1\/4-20 UNC threads without cutting or generating chips. Built from cobalt high-speed steel with a steam oxide coating, this tap displaces material rather than removing it, producing stronger, work-hardened threads in ductile materials. The modified bottoming chamfer — 2 to 2.5 chamfered threads — allows threading close to the bottom of blind holes. With an overall length of 2.5 inches, a thread length of 0.594 inches, and a tapping depth of 0.933 inches, it is sized for standard machine tapping operations in production and maintenance environments. Installation is performed by machinists, tool and die makers, and industrial maintenance technicians.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind hole threading applications in a wide range of materials. The H4 thread limit makes it appropriate for work requiring close tolerance fits. Rated for use in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel, it covers the material mix common in general machining, fabrication, and toolroom work. The right-hand thread direction is standard for the majority of fastener applications encountered in these trades.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design displaces material to create chip-free, work-hardened threads ideal for blind holes\u003c\/li\u003e\n\u003cli\u003eCobalt high-speed steel construction provides heat and wear resistance in tough alloy and stainless steel applications\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and improves lubrication retention during tapping\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) enables threading close to blind hole bottoms\u003c\/li\u003e\n\u003cli\u003eH4 thread limit supports close-tolerance 1\/4-20 UNC thread production\u003c\/li\u003e\n\u003cli\u003eCompatible with multiple material groups including alloy steel, stainless steel, aluminum, and carbon steel\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for blind hole threading operations producing 1\/4-20 UNC right-hand internal threads in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. Part of the OSG HY-PRO NRT series, Series 14001.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill — standard cut tap drill sizes are not correct for forming taps and will produce out-of-tolerance threads. Ensure adequate lubrication or cutting fluid is applied before and during tapping to protect the tap and the workpiece. Power down or de-energize any CNC or power tapping equipment before loading or changing tooling. Follow shop safety practices and applicable OSHA machine guarding requirements when operating tapping equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\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\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\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\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\u003eSeries\u003c\/strong\u003e: HY-PRO NRT, Series 14001\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.034 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: 1400126201\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747255124274,"sku":"1400126201","price":30.7,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/0e49d3bd3f378bf684013ae61a26d4f6.jpg?v=1788878243","url":"https:\/\/voomisupply.com\/products\/osg-1400126201-thread-forming-tap-1-4-20-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}