{"product_id":"osg-1734601-spiral-point-tap-2-56-unc-plug-hss","title":"Osg 1734601 Spiral Point Tap 2-56 Unc Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1734601 is a spiral point plug tap designed for cutting right-hand internal threads to a 2-56 UNC specification. Built from Vanadium High Speed Steel (HSS-E) with a steam oxide coating, this tap is engineered for threading operations in ferrous materials where heat and wear resistance matter. It features 2 flutes and a plug chamfer that progressively starts the thread for guided entry into through-holes. The H2 thread limit keeps tolerances tight and consistent across production runs. With an overall length of 1.752 inches and a thread length of 0.437 inches, this tap fits standard #2 machine screw applications in both manual and machine tapping setups.\u003c\/p\u003e\u003cp\u003eThis tap is suited for threading small-diameter holes in light industrial and precision manufacturing environments. Common applications include tapping blind and through-holes in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel workpieces. The 2-56 UNC thread form is standard in instrument panels, electronics enclosures, and small mechanical assemblies where fine fastener engagement is required. A Class 2B fit is the standard commercial thread tolerance class for general-purpose internal threads.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e2-56 UNC thread form with Class 2B fit for standard commercial tolerance internal threads\u003c\/li\u003e\n\u003cli\u003eVanadium HSS-E construction for improved toughness and wear resistance over standard HSS\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and provides mild corrosion resistance during storage and use\u003c\/li\u003e\n\u003cli\u003ePlug chamfer (3-5 thread lead) guides entry and distributes cutting load progressively\u003c\/li\u003e\n\u003cli\u003eH2 thread limit ensures consistent oversize control for plated or tight-tolerance applications\u003c\/li\u003e\n\u003cli\u003e2-flute spiral point design pushes chips forward, keeping the cutting zone clear in through-hole operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for threading 2-56 UNC internal threads in hardened steel, low-carbon steel, medium-carbon steel, and stainless steel. Compatible with standard tapping chucks and holders sized for a 0.141-inch shank diameter. Not designed for coolant-through applications.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by machinists and precision metalworkers using a tapping chuck, tap wrench, or CNC rigid tapping setup. Ensure the workpiece is securely fixtured and the pilot hole diameter matches the recommended tap drill size for 2-56 UNC before starting. Apply appropriate cutting fluid for the workpiece material, particularly when tapping stainless steel. Inspect the tap for chipping or wear between uses, as small-diameter taps are susceptible to breakage under side load or misalignment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 2-56\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 Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High Speed Steel (HSS-E)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.752 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.437 inches (7\/16 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches\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: 300\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.009 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Hardened Steel, Low-Carbon Steel, Medium-Carbon Steel, Stainless Steel\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: 1734601\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51742423482674,"sku":"1734601","price":55.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d824533027fbd9f9e8a7749febd03270.jpg?v=1788837361","url":"https:\/\/voomisupply.com\/products\/osg-1734601-spiral-point-tap-2-56-unc-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}