{"product_id":"osg-1400141005-thread-forming-tap-7-16-20-unf-cobalt-tin","title":"Osg 1400141005 Thread Forming Tap 7\/16-20 Unf Cobalt Tin","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1400141005 is a thread forming tap in the HY-PRO NRT series, designed for cold-forming internal threads without cutting. It produces 7\/16-20 UNF right-hand threads using material displacement rather than chip removal, resulting in stronger thread forms and no chips to clear. Built from cobalt high-speed steel and coated with titanium nitride (TiN), it handles the heat and wear demands of production tapping. Overall length is 3.156 inches with a thread length of 0.858 inches and a shank diameter of 0.323 inches. The H5 thread limit suits close-tolerance work in precision assemblies.\u003c\/p\u003e\n\u003cp\u003eThis tap is rated for blind hole threading applications across a broad range of metals, including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The modified bottoming chamfer with 2 to 2.5 chamfered threads allows threading close to the bottom of a blind hole, making it well suited for tight-clearance components in machined parts and assemblies where thread depth is critical. It is used in job shops, production machining environments, and maintenance operations where consistent thread quality in tough materials is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming (chipless) design produces stronger threads and eliminates chip evacuation concerns in blind holes\u003c\/li\u003e\n  \u003cli\u003eCobalt HSS construction provides elevated heat resistance and wear life over standard M2 HSS taps\u003c\/li\u003e\n  \u003cli\u003eTiN coating reduces friction and extends tool life in abrasive and work-hardening materials\u003c\/li\u003e\n  \u003cli\u003eModified bottoming chamfer (2 to 2.5 threads) enables threading to near-bottom depth in blind holes\u003c\/li\u003e\n  \u003cli\u003eH5 thread limit provides controlled fit for close-tolerance UNF thread applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction; no coolant-through requirement simplifies setup on standard tapping equipment\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for blind hole thread forming in alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. Material application codes P and N confirm suitability for steels and non-ferrous metals. 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 specific tap drill size that is larger than the drill used for cut taps of the same thread size — always consult a thread forming drill chart for 7\/16-20 UNF before drilling. Install using a rigid or floating tap holder to prevent misalignment; use of a synchronous tapping attachment is recommended for CNC applications. Apply a suitable tapping fluid or cutting oil rated for the workpiece material, especially when working with stainless or hardened steel. Power down or de-energize the machine and secure the workpiece firmly before tool changes.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\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\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\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.156 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.858 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.713 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.323 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.242 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.406 inches\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\/Finish\u003c\/strong\u003e: TiN (Titanium Nitride)\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 14001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.15 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: 1400141005\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51752581333298,"sku":"1400141005","price":76.81,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/9ad80245b292005ce00906c0c7b5dfd8.jpg?v=1788929209","url":"https:\/\/voomisupply.com\/products\/osg-1400141005-thread-forming-tap-7-16-20-unf-cobalt-tin","provider":"Voomi Supply","version":"1.0","type":"link"}