{"product_id":"osg-1405002708-thread-forming-tap-5-40-unc-bottoming","title":"Osg 1405002708 Thread Forming Tap 5-40 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1405002708 is a thread forming tap in the EXOTAP VP-NRT series, designed for cold-forming internal threads in blind holes without cutting or producing chips. Sized for 5-40 UNC threads, it features a bottoming chamfer with 1 to 1.5 chamfered threads, allowing threading close to the bottom of a blind hole. Manufactured from powdered metal high-speed steel and finished with a TiCN (Titanium Carbonitride) coating, the tap delivers enhanced wear resistance and lubricity across a wide range of work materials. The H4 thread limit ensures consistent tolerance control. This tap is installed by machinists, tool and die makers, and precision manufacturing technicians.\u003c\/p\u003e\u003cp\u003eThe 1405002708 is suited for blind hole threading operations in materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. Its cold-forming action displaces material rather than cutting it, producing stronger threads with improved surface finish. This makes it a practical choice for production threading in CNC machining centers, drill presses, and tapping machines where chip evacuation in deep blind holes is a concern.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer (1 to 1.5 chamfered threads) for threading close to blind hole bottom\u003c\/li\u003e\n\u003cli\u003ePowdered metal high-speed steel construction for improved toughness and wear resistance\u003c\/li\u003e\n\u003cli\u003eTiCN coating extends tool life and reduces friction across varied work materials\u003c\/li\u003e\n\u003cli\u003eH4 thread limit for consistent tolerance control on 5-40 UNC threads\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement simplifies setup on standard tapping equipment\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tapping attachments\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\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.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a properly sized forming tap drill hole, which differs from standard cut tap drill sizes  -  consult a forming tap drill chart before drilling. Secure the workpiece and use appropriate tapping fluid or cutting oil recommended for the work material. Power down or de-energize the machine before changing tooling. Follow shop-standard speeds and feeds for thread forming taps, as cold-forming generates higher torque than cutting taps of the same size.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eChamfer\u003c\/strong\u003e: Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 1 to 1.5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\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\u003eOverall Length\u003c\/strong\u003e: 1.938 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.2992 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\u003eCoolant Through\u003c\/strong\u003e: No\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: 0.01 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: 1405002708\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743136186674,"sku":"1405002708","price":74.18,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f7f578c634c35ef27c59a0556a4e8b3b_6cd9ef78-8958-49c5-92c5-ccbbec63369f.jpg?v=1788843097","url":"https:\/\/voomisupply.com\/products\/osg-1405002708-thread-forming-tap-5-40-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}