{"product_id":"osg-1400107901-thread-forming-tap-5-40-unc-cobalt","title":"Osg 1400107901 Thread Forming Tap 5-40 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400107901 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads in blind hole applications without cutting or removing material. Sized for 5-40 UNC threads, it is manufactured from cobalt high-speed steel and finished with a steam oxide coating to reduce friction and improve lubrication retention. The modified bottoming chamfer with 2 to 2.5 chamfered threads allows threading close to the bottom of blind holes. At 1.938 inches overall length with a 0.141-inch shank diameter, this tap fits standard tap wrenches and machine setups used by machinists and tool-and-die professionals.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for production and maintenance machining environments where thread integrity and hole-bottom proximity are critical. It carries a Class of Fit 2B with a Thread Limit of H5, making it appropriate for standard-tolerance UNC threaded assemblies. Specified material applications include alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel, covering a broad range of workpiece materials encountered in industrial and precision machining operations.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e5-40 UNC thread form with right-hand thread direction and 40 threads per inch\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5 chamfered threads) for threading close to blind hole bottoms\u003c\/li\u003e\n  \u003cli\u003eCobalt high-speed steel construction for performance in harder and abrasive workpiece materials\u003c\/li\u003e\n  \u003cli\u003eSteam oxide coating reduces friction and aids in chip-free cold-forming operation\u003c\/li\u003e\n  \u003cli\u003eThread Limit H5 and Class of Fit 2B for consistent, standard-tolerance thread production\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design; suitable for use with externally applied cutting fluid or tapping compound\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 5-40 UNC internal threads to a Class of Fit 2B standard.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps should be installed by qualified machinists using a properly sized tap wrench or CNC tapping head aligned perpendicular to the workpiece surface. Ensure the spindle or driver is powered down before mounting or removing the tap. Apply an appropriate tapping compound or cutting fluid to the tap and workpiece before beginning the operation. Do not force the tap if resistance is encountered, as binding in hardened or stainless materials can cause tap breakage.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.938 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.299 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.626 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\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\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\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\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: 0.015 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: 1400107901\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51730016010546,"sku":"1400107901","price":32.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/7c3cc01d4e06ee44913a8eb46cf3d4ef.jpg?v=1788710235","url":"https:\/\/voomisupply.com\/products\/osg-1400107901-thread-forming-tap-5-40-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}