{"product_id":"osg-1592700-straight-flute-tap-1-2-20-unf-plug-hss","title":"Osg 1592700 Straight Flute Tap 1\/2-20 Unf Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1592700 is a straight flute plug tap designed for cutting right-hand internal threads to the 1\/2-20 UNF standard. Built from high-speed steel (HSS) with a bright\/uncoated finish, this 4-flute tap is suited for production and repair threading operations where straight chip flow is acceptable. The plug chamfer — typically 3 to 5 threads — makes it a general-purpose starting choice for through-holes and sufficiently deep blind holes. At 3-3\/8 inches overall length with a 1-21\/32 inch thread length, it fits standard tap holders and threading machines used in machine shops and field maintenance work. The H11 thread limit designates a specific oversize tolerance class for controlled thread fit.\u003c\/p\u003e\n\u003cp\u003eThis tap is rated for use in aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. It is well suited for both manual hand-tapping and machine tapping operations in manufacturing, maintenance, and repair environments. Machinists, tool-and-die workers, and maintenance technicians working with 1\/2-20 UNF fastener applications will find this tap appropriate for production runs and one-off threading jobs alike. It is part of the OSG Series 101H straight flute tap line.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e1\/2-20 UNF thread form with right-hand thread direction\u003c\/li\u003e\n  \u003cli\u003e4 straight flutes for efficient chip management in short-chipping materials\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer for general-purpose through-hole and deep blind-hole threading\u003c\/li\u003e\n  \u003cli\u003eH11 thread limit oversize designation for controlled fit tolerance\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with bright\/uncoated finish\u003c\/li\u003e\n  \u003cli\u003eNo coolant-through design; suitable for standard cutting fluid application\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for threading 1\/2-20 UNF internal threads in aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces. Fits standard tap holders sized for a 0.367 inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed in a properly aligned tap holder or tapping head to prevent thread misalignment and tool breakage. Always apply appropriate cutting fluid for the workpiece material before and during tapping. Ensure the workpiece is securely fixtured before beginning the threading operation. Follow applicable shop safety practices and machine guarding requirements when using power tapping equipment.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/2-20 UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 20\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 Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H11\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-3\/8 inches (3.374 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-21\/32 inches (1.154 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.811 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.367 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.4375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.275 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eAmount Oversize\u003c\/strong\u003e: 0.005 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\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Aluminum, Cast Iron, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 101H\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.11 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: 1592700\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754376593714,"sku":"1592700","price":48.3,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/b57b0014365a539aaa83cdfdb8f54d4b.jpg?v=1788944848","url":"https:\/\/voomisupply.com\/products\/osg-1592700-straight-flute-tap-1-2-20-unf-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}