{"product_id":"osg-1405006808-thread-forming-tap-1-4-20-unc-bottoming-ticn","title":"Osg 1405006808 Thread Forming Tap 1\/4-20 Unc Bottoming Ticn","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1405006808 is a thread forming tap in the EXOTAP VP-NRT series, designed for cold-forming internal threads without cutting. Sized for 1\/4-20 UNC thread with a bottoming chamfer of 1 to 1.5 threads, it is built from powdered metal high-speed steel (PM-HSS) and coated with TiCN for extended tool life in demanding materials. With an overall length of 2.5 inches and a thread length of 0.5945 inches, this tap is suited for blind hole applications where thread depth control is critical. It is installed by machinists and tool-and-die technicians in production and maintenance environments.\u003c\/p\u003e\n\u003cp\u003eThis tap is designed for blind hole threading in a range of ferrous and non-ferrous materials including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The bottoming chamfer allows threading close to the bottom of a blind hole, making it appropriate for tight-tolerance fastener applications in aerospace, automotive, and general metalworking. The right-hand thread direction and H5 thread limit are consistent with standard UNC fastener specifications. Package quantity is 1.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design produces stronger threads by cold-working material rather than cutting chips\u003c\/li\u003e\n  \u003cli\u003eTiCN coating improves surface hardness and wear resistance, extending tap life in abrasive and high-strength materials\u003c\/li\u003e\n  \u003cli\u003eBottoming chamfer (1 to 1.5 threads) enables threading to near full depth in blind holes\u003c\/li\u003e\n  \u003cli\u003ePowdered metal high-speed steel construction provides toughness and fine grain structure for consistent performance\u003c\/li\u003e\n  \u003cli\u003eH5 thread limit ensures close tolerance fit with standard UNC hardware\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through requirement simplifies use in standard CNC and manual tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole threading in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces. Suitable for use with standard 1\/4-20 UNC fastener applications requiring right-hand thread direction and H5 thread limit tolerances.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a specific forming tap drill size, which differs from a standard cutting tap pilot hole  -  consult a forming tap drill chart for the correct hole diameter before tapping. Power down and secure the workpiece before beginning any tapping operation. Use an appropriate tapping lubricant or cutting fluid matched to the workpiece material to reduce friction and prevent tap breakage. This tap is intended for use by qualified machinists or tooling technicians familiar with thread forming processes and machine shop safety practices.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\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\u003eChamfer\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 1.5 threads\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\u003eThread Limit\u003c\/strong\u003e: H5\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: 0.5945 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.9960 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.2550 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.1910 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: Powdered Metal High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: TiCN\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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\u003eSeries\u003c\/strong\u003e: EXOTAP VP-NRT\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.033 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: 1405006808\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51742399332658,"sku":"1405006808","price":80.43,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fbfeb5d7840f51b207d388c6d5be3298.jpg?v=1788837203","url":"https:\/\/voomisupply.com\/products\/osg-1405006808-thread-forming-tap-1-4-20-unc-bottoming-ticn","provider":"Voomi Supply","version":"1.0","type":"link"}