{"product_id":"osg-1625014246-thread-forming-tap-1-4-20-unc-cobalt-plug","title":"Osg 1625014246 Thread Forming Tap 1\/4-20 Unc Cobalt Plug","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1625014246 is a thread forming tap designed for through-hole threading in a wide range of metallic materials. Built from cobalt high speed steel with a V-coating finish, it produces internal threads by displacing material rather than cutting, resulting in stronger threads and no chips to clear. The tap is configured in a plug chamfer style with 4 to 4.5 chamfered threads, a 1\/4-20 UNC thread form, and a 2B class of fit with an H6 thread limit. Overall length is 3.1496 inches with a thread length of 0.4961 inches and a tapping depth of 1.378 inches. It is sized for machinists, tool-and-die shops, and maintenance technicians working in production or MRO environments.\u003c\/p\u003e\u003cp\u003eThis tap is applied in through-hole threading operations across a broad spectrum of materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, stainless steel, hardened steel, high-nickel alloy, and titanium. The cobalt construction and V-coating make it well suited for demanding applications where standard high speed steel taps may wear prematurely. It fits standard tap holders and machine tapping setups and carries the OSG EXOPRO XPF trade name under Series 16250.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming action displaces material rather than cutting, eliminating chips in through-hole applications\u003c\/li\u003e\n\u003cli\u003eCobalt high speed steel construction with V-coating for extended tool life in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003ePlug chamfer with 4 to 4.5 chamfered threads for guided entry in through-hole work\u003c\/li\u003e\n\u003cli\u003eH6 thread limit with 2B class of fit for consistent, standard-tolerance internal threads\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, compatible with standard tapping machines and hand tap wrenches\u003c\/li\u003e\n\u003cli\u003eRated for use in aluminum, stainless steel, titanium, high-nickel alloy, and multiple steel grades\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a thread forming tap for 1\/4-20 UNC through-hole applications across material application codes P, M, N, and H, covering steels, stainless, non-ferrous metals, and high-temperature alloys. Fits standard 0.255-inch shank tap holders and collet-style tapping heads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps should be installed by qualified machinists or tooling technicians familiar with proper tap speed and feed rates for the target material. Power down and lock out any machine tool before changing tooling. Use appropriate tapping fluid or cutting oil rated for the workpiece material to reduce friction and extend tap life. Do not force the tap if resistance increases unexpectedly, as thread forming taps are susceptible to breakage if the pilot hole diameter is undersized.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H6\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\u003eMaterial\u003c\/strong\u003e: Cobalt High Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: V\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.1496 inches (80 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.4961 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.378 inches (35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-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: 16250\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrade Name\u003c\/strong\u003e: EXOPRO XPF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: 1625014246\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51749461066034,"sku":"1625014246","price":109.46,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/facac4d523372076dc175b7d4e5ae72a.jpg?v=1788906387","url":"https:\/\/voomisupply.com\/products\/osg-1625014246-thread-forming-tap-1-4-20-unc-cobalt-plug","provider":"Voomi Supply","version":"1.0","type":"link"}