{"product_id":"osg-1400107805-thread-forming-tap-5-40-unc-cobalt-tin","title":"Osg 1400107805 Thread Forming Tap 5-40 Unc Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400107805 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads in blind holes without cutting chips. Built from cobalt high-speed steel with a Titanium Nitride (TiN) coating, it handles demanding materials including alloy steel, carbon steel, stainless steel, die steel, hardened steel, and aluminum. The modified bottoming chamfer, spanning 2 to 2.5 threads, allows threading close to the bottom of a blind hole. The H4 thread limit maintains dimensional control for 5-40 UNC threads. Machinists and tool-and-die professionals use this tap in CNC machining centers and drill presses where chip-free thread forming is required for hole integrity and thread strength.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for blind hole threading applications across a range of ferrous and non-ferrous base materials. It is appropriate for production environments where chip evacuation is a concern and work-hardening materials such as stainless steel demand the additional hardness and lubricity that cobalt construction and TiN coating provide. The right-hand thread direction and 5-40 UNC designation make it a standard choice for small-fastener applications in precision machined assemblies, instrument enclosures, and light structural components.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (chipless) design eliminates chip packing in blind holes\u003c\/li\u003e\n  \u003cli\u003eCobalt high-speed steel construction improves heat and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and extends tool life across abrasive materials\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) enables threading near blind hole bottom\u003c\/li\u003e\n  \u003cli\u003eH4 thread limit provides controlled fit for 5-40 UNC threads\u003c\/li\u003e\n  \u003cli\u003eCompatible with alloy steel, carbon steel, stainless steel, die steel, hardened steel, and aluminum\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. Material application codes P and N confirm suitability for steel and non-ferrous material groups per standard tooling classification.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a properly sized forming hole diameter, which differs from a standard tap drill size — consult the applicable forming tap drill chart for the 5-40 UNC specification before machining the pilot hole. A cutting fluid or tapping compound rated for the workpiece material should be applied to reduce torque and extend tool life. This tap does not have coolant-through capability, so external lubrication is required. Installation is performed by machinists; torque limits and spindle speeds should follow the machine tool manufacturer's guidelines for the workpiece material.\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\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 2 to 2.5 threads\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\u003eMaterial\u003c\/strong\u003e: Cobalt High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Titanium Nitride (TiN)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.9375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.2990 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 0.6260 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\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\u003eSeries\u003c\/strong\u003e: HY-PRO NRT (14001)\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: 1400107805\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51737503203634,"sku":"1400107805","price":34.48,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/3b46d05c8e13e1ba8e270c723c1b86a6.jpg?v=1788789383","url":"https:\/\/voomisupply.com\/products\/osg-1400107805-thread-forming-tap-5-40-unc-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}