{"product_id":"osg-1400131805-thread-forming-tap-5-16-18-unc-plug-cobalt-tin","title":"Osg 1400131805 Thread Forming Tap 5\/16-18 Unc Plug Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400131805 is a thread forming tap designed for creating internal threads in through-hole applications without cutting chips. Operating on a cold-forming principle, it displaces material rather than removing it, producing stronger threads with a smoother finish. Built from cobalt high-speed steel and finished with a titanium nitride (TiN) coating, it handles demanding materials and extended production runs. The plug chamfer style with 4 to 4.5 chamfered threads allows gradual thread engagement, reducing torque requirements on entry. At 2.719 inches overall length with a 0.6654-inch thread length and H7 thread limit, it is sized for standard 5\/16-18 UNC threading operations in machine shop and production environments.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for right-hand through-hole threading in a wide range of metalworking applications. It performs across multiple material groups, including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The TiN coating extends tool life in abrasive and harder materials. It is typically used in CNC machining centers, drill presses, and tapping machines by machinists, toolmakers, and production line technicians working in job shops or manufacturing facilities.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (chip-free) design produces stronger threads through material displacement\u003c\/li\u003e\n  \u003cli\u003eCobalt high-speed steel construction for improved heat and wear resistance over standard HSS\u003c\/li\u003e\n  \u003cli\u003eTiN coating extends tool life in abrasive and harder workpiece materials\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer with 4 to 4.5 chamfered threads for gradual, controlled thread engagement\u003c\/li\u003e\n  \u003cli\u003eH7 thread limit provides consistent fit across standard tolerance applications\u003c\/li\u003e\n  \u003cli\u003eCompatible with alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading operations in alloy steel, aluminum, carbon steel, die steel, hardened steel, and stainless steel workpieces. Part of the OSG HY-PRO NRT Series 14001.\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 a standard cut tap drill and must be calculated for the specific material and thread size. Power down or lock out all equipment before loading or removing tooling. Use an appropriate tapping fluid or cutting oil matched to the workpiece material to reduce friction and extend tool life. Installation and tooling changes should be performed by qualified machinists following shop safety procedures.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\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: 18\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Style\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 4 to 4.5P\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: H7\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\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: TiN (Titanium Nitride)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.719 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.6654 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.126 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.238 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\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, Series 14001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.055 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: 1400131805\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51744921485618,"sku":"1400131805","price":46.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b4ed7fe5a02ba04abdb86551845c7753.jpg?v=1788862242","url":"https:\/\/voomisupply.com\/products\/osg-1400131805-thread-forming-tap-5-16-18-unc-plug-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}