{"product_id":"osg-1400139200-thread-forming-tap-7-16-14-unc-cobalt","title":"Osg 1400139200 Thread Forming Tap 7\/16-14 Unc Cobalt","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1400139200 is a thread forming tap in the HY-PRO NRT series, designed for cold-form tapping of internal threads without cutting or producing chips. Built from cobalt high-speed steel with a bright finish, this tap handles 7\/16-14 UNC threads in blind hole applications. It features a modified bottoming chamfer with 2 to 2.5 chamfered threads, allowing thread forming to begin close to the bottom of a blind bore. The H5 thread limit provides the tolerance control required for consistent thread fit. Overall length is 3.156 inches with a tapping depth of 1.713 inches. Machinists and toolroom professionals use this tap in CNC and manual tapping operations where chip-free threading is required.\u003c\/p\u003e\u003cp\u003eThis tap is suited for blind hole threading in a range of ferrous and non-ferrous materials including alloy steel, carbon steel, die steel, hardened steel, stainless steel, and aluminum. The modified bottoming chamfer makes it practical for applications where thread engagement must start near the bottom of a shallow blind hole. Right-hand thread direction is standard. No coolant-through feature is present, so flood or brush-applied cutting fluid is used at the spindle during operation.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming design eliminates chips, reducing hole cleanup and breakage risk in blind bores\u003c\/li\u003e\n\u003cli\u003eCobalt construction provides heat and wear resistance in harder workpiece materials\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer with 2 to 2.5 chamfered threads for near-bottom thread forming\u003c\/li\u003e\n\u003cli\u003eH5 thread limit for consistent tolerance control on 7\/16-14 UNC threads\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tapping heads and CNC rigid tapping\u003c\/li\u003e\n\u003cli\u003eBright finish with no coating, suitable for use with standard tapping lubricants\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\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 indicate suitability for steel and non-ferrous material groups per standard tooling classification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a specific tap drill size larger than that used for cut taps — consult the appropriate forming tap drill chart for 7\/16-14 UNC before drilling. Secure the workpiece and ensure the tap is properly aligned to the hole axis before engagement to avoid tap breakage. Use a suitable tapping compound or cutting oil; do not run dry. This tap is intended for installation by qualified machinists familiar with tapping speeds, feed rates, and blind hole depth management.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-14\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 14\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\u003eThread Limit\u003c\/strong\u003e: H5\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Cobalt\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\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\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\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: HY-PRO NRT\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.097 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: 1400139200\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51735030661426,"sku":"1400139200","price":64.32,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f9e0a7535aeb52c331c9ab34d6077839_4d91fea9-25ba-4ce7-b5c9-9de056975d3a.jpg?v=1788769452","url":"https:\/\/voomisupply.com\/products\/osg-1400139200-thread-forming-tap-7-16-14-unc-cobalt","provider":"Voomi Supply","version":"1.0","type":"link"}