{"product_id":"kennametal-4132020-thread-forming-tap-4-40-unc-bottoming-ticn","title":"Kennametal 4132020 Thread Forming Tap 4-40 Unc Bottoming Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 4132020 is a bottoming-style thread forming tap designed for 4-40 UNC internal threads in steel workpieces. Unlike cutting taps, thread forming taps displace material rather than remove it, producing stronger threads with no chips to clear from blind holes. This tap is manufactured from vanadium high-speed steel (HSS-E) and coated with TiCN for improved wear resistance and surface hardness. With an overall length of 1.875 inches and a thread length of 0.3125 inches, it is sized for compact fastener applications. Thread limit is H3. Machinists, tool and die makers, and maintenance technicians install this tap in CNC machining centers, drill presses, and tapping machines.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading in steel at the 4-40 UNC thread size, a common fastener spec in instrument panels, electronics enclosures, small mechanical assemblies, and precision fabrication work. The bottoming chamfer with 1.5 to 2 chamfered threads allows the tap to form threads close to the bottom of a blind hole, maximizing thread engagement in shallow-depth applications. Right-hand thread direction follows standard UNC convention. The TiCN coating extends tool life in ferrous materials and reduces galling during the forming process.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer with 1.5 to 2 chamfered threads for maximum thread depth in blind holes\u003c\/li\u003e\n  \u003cli\u003eThread forming design displaces material rather than cutting, producing chip-free threads with higher fatigue strength\u003c\/li\u003e\n  \u003cli\u003eVanadium high-speed steel (HSS-E) construction for toughness and wear resistance in steel applications\u003c\/li\u003e\n  \u003cli\u003eTiCN coating reduces friction and extends tool life in ferrous workpiece materials\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for consistent tolerance control on 4-40 UNC threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, standard UNC configuration\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole threading in steel workpieces at the 4-40 UNC thread standard. Intended for use in CNC tapping, drill press, and hand-tapping applications where a bottoming-style forming tap is required at this thread size. Suitable for material application code P (steel).\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a properly sized forming tap drill  -  the recommended hole diameter differs from standard cut-tap drill charts, so consult a forming tap drill chart before drilling the pilot hole. Power down or de-energize any machine spindle before loading or unloading the tap. Use appropriate tapping fluid rated for steel to reduce forming forces and extend tool life. Inspect the tap for wear or galling before each use, as a damaged forming tap can seize in a blind hole.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1.5 to 2P\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\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: 0.3125 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.1410 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.1100 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel (HSS-E)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\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: 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: 5502TC\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.1 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 4132020\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51742328422706,"sku":"4132020","price":80.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/43b3dcff54293d8fca5918e2c43e7eda.jpg?v=1788836793","url":"https:\/\/voomisupply.com\/products\/kennametal-4132020-thread-forming-tap-4-40-unc-bottoming-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}