{"product_id":"osg-1680100-straight-flute-tap-1-4-32-unef-plug-hss","title":"Osg 1680100 Straight Flute Tap 1\/4-32 Unef Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1680100 is a straight flute tap designed to cut internal 1\/4-32 UNEF right-hand threads in a wide range of metallic workpieces. Built from high-speed steel with a bright\/uncoated finish, this plug-chamfer tap provides a standard entry angle suited for through-holes and moderately deep blind holes. The 4-flute design delivers good chip clearance and thread form accuracy. With an overall length of 2.5 inches and a thread length of 0.748 inches, this tap is sized for general-purpose machine and hand tapping operations. The H3 thread limit specifies a controlled oversize tolerance, making it appropriate for plated or close-tolerance threaded applications. No coolant-through feature is present.\u003c\/p\u003e\n\u003cp\u003eThis tap is suited for threading operations in aluminum, cast aluminum, cast iron, low-carbon steel, medium-carbon steel, and high-carbon steel. It fits typical production and maintenance environments where 1\/4-32 UNEF threads are required, such as instrument housings, fittings, and precision mechanical assemblies. The plug chamfer makes it a practical first-choice tap for most standard through-hole and open-ended blind-hole jobs. It is part of the OSG 101N series, a line of general-purpose straight flute taps for ferrous and non-ferrous materials.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/4-32 UNEF thread form with right-hand helix for standard internal threading\u003c\/li\u003e\n  \u003cli\u003e4 straight flutes for consistent chip evacuation in short-chipping materials\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer (3-5 thread lead) for versatile use in through-holes and shallow blind holes\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit for controlled tolerance, suitable for close-fit and post-plate applications\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with bright\/uncoated finish for use across a broad range of metals\u003c\/li\u003e\n  \u003cli\u003eCompact profile: 2.5 inches overall length, 0.255 inch shank diameter\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eRated for use in aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Part of the OSG 101N straight flute tap series.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists or maintenance technicians using a standard tap wrench, tapping head, or CNC machine with appropriate feed rate for the thread pitch. Always secure the workpiece and align the tap square to the hole before engaging to avoid tap breakage or cross-threading. Apply cutting fluid appropriate to the workpiece material to extend tap life and improve thread finish. Do not force a tap that is binding; back it off to break chips before continuing.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-32 UNEF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNEF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 32\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: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.748 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 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 Length\u003c\/strong\u003e: 0.3125 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\u003eNeck Length\u003c\/strong\u003e: 1.181 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High-Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Bright\/Uncoated\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 101N\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.029 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: 1680100\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743485296946,"sku":"1680100","price":23.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d9ad52e73964491037f904f4b136dc0f.jpg?v=1788847565","url":"https:\/\/voomisupply.com\/products\/osg-1680100-straight-flute-tap-1-4-32-unef-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}