{"product_id":"osg-1400107701-thread-forming-tap-5-40-unc-cobalt","title":"Osg 1400107701 Thread Forming Tap 5-40 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400107701 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads without cutting chips. Sized for 5-40 UNC threading with a modified bottoming chamfer of 2 to 2.5 threads, it works in blind hole applications where chip evacuation is a concern. The tap is manufactured from cobalt high-speed steel and finished with a steam oxide coating to reduce friction and improve tool life. Overall length is 1.938 inches with a shank diameter of 0.141 inches. Machinists and tool-and-die technicians use this tap in production and repair operations requiring a Class 3B fit with an H3 thread limit.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading in a wide range of materials including alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel. The modified bottoming chamfer allows the tap to reach close to the bottom of a blind hole, making it a practical choice for tight-tolerance fastener applications in precision machining, aerospace fixtures, and industrial component repair. Right-hand thread direction is standard. No coolant-through capability is present, so external cutting fluid application is recommended when tapping steel or stainless steel.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design eliminates chips, reducing the risk of chip packing in blind holes\u003c\/li\u003e\n  \u003cli\u003eCobalt construction provides heat resistance for tapping hardened and stainless steel\u003c\/li\u003e\n  \u003cli\u003eSteam oxide coating reduces friction and extends tool life in production use\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5P) allows threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit and Class 3B fit for tight-tolerance threaded connections\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, compatible with standard tapping equipment and tap handles\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. Material application codes P and N apply. Intended for use with standard 5-40 UNC tapping operations requiring a Class 3B fit.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require more torque than cutting taps and must be used with appropriate tapping fluid or cutting oil, particularly in steel and stainless steel. Ensure the tap is properly aligned with the pre-drilled hole before starting to avoid tap breakage or cross-threading. Use a torque-limiting tap handle or CNC tapping cycle to prevent overload. Follow shop safety procedures and secure the workpiece before beginning any tapping operation.\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\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: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Steam Oxide\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\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\u003eMaterial Application\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: 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: 1400107701\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51736899846450,"sku":"1400107701","price":32.78,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e6a2a7eeb9edf9e5cdb6729f95bc50b7.jpg?v=1788781694","url":"https:\/\/voomisupply.com\/products\/osg-1400107701-thread-forming-tap-5-40-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}