{"product_id":"osg-1625514026-thread-forming-tap-1-4-20-unc-2b-h6","title":"Osg 1625514026 Thread Forming Tap 1\/4-20 Unc 2B H6","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1625514026 is a thread forming tap designed for cutting 1\/4-20 UNC internal threads in a wide range of metals. Unlike cutting taps, thread forming taps displace material rather than remove chips, producing stronger threads with better surface finish. This tap features a semi-bottoming chamfer, right-hand thread direction, and an H6 thread limit. It is manufactured from cobalt high speed steel for extended tool life in demanding production and maintenance environments. Overall length is 5.906 inches with a thread length of 0.526 inches and a neck length of 1.207 inches. Machinists, tool and die makers, and maintenance technicians install this tap in manual or CNC tapping operations.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading operations in both production shops and field maintenance settings. The cobalt material construction makes it appropriate for use in materials including aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium. The 2B class of fit is standard for general-purpose inch-series threaded fastener applications. The semi-bottoming chamfer allows threading closer to the bottom of a blind hole than a plug chamfer, making this tap a practical choice where thread depth is a constraint.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design displaces material for stronger, chip-free threads\u003c\/li\u003e\n  \u003cli\u003eCobalt high speed steel construction for extended tool life in hard and abrasive materials\u003c\/li\u003e\n  \u003cli\u003eSemi-bottoming chamfer for threading near the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eH6 thread limit for consistent 2B class of fit on 1\/4-20 UNC threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, compatible with standard tapping fixtures and CNC tapping heads\u003c\/li\u003e\n  \u003cli\u003eV coating finish to reduce friction and improve tap life\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for producing 1\/4-20 UNC 2B internal threads in aluminum, cast aluminum, carbon steel, alloy steel, die steel, hardened steel, stainless steel, high-nickel alloy, and titanium workpieces using standard tapping equipment.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a specific forming tap drill size, which differs from standard cut tap drill sizes — consult a forming tap drill chart before drilling the pilot hole. Use appropriate tapping fluid or cutting oil matched to the workpiece material; dry tapping is not recommended for most metals. Ensure the workpiece is securely fixtured and the tap is aligned perpendicular to the hole to avoid tap breakage. Installation is performed by machinists and maintenance technicians using standard tapping handles, drill presses, or CNC machining centers.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: 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 Type\u003c\/strong\u003e: Semi-Bottoming\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: 20\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.526 inches (15 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Depth\u003c\/strong\u003e: 32 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 5.906 inches (150 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.207 inches\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\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\u003eSeries\u003c\/strong\u003e: 16255\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.084 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: 1625514026\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51727793619250,"sku":"1625514026","price":163.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/841d86ee2666fc747e897d17d351e062.jpg?v=1788682486","url":"https:\/\/voomisupply.com\/products\/osg-1625514026-thread-forming-tap-1-4-20-unc-2b-h6","provider":"Voomi Supply","version":"1.0","type":"link"}