{"product_id":"osg-1121900-straight-flute-plug-tap-7-16-14-unc-hss","title":"Osg 1121900 Straight Flute Plug Tap 7\/16-14 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1121900 is a straight flute plug tap designed for cutting internal 7\/16-14 UNC right-hand threads in a range of ferrous and non-ferrous metals. Built from high-speed steel with a bright uncoated finish, this tap delivers consistent thread quality in production and maintenance settings. It features 4 flutes and a plug chamfer, which provides a moderate lead-in that works well for through-holes and blind holes with adequate chip clearance. Overall length is 3-5\/32 inches, with a thread length of 1-7\/16 inches. Thread limit is H3, suitable for standard tolerance class 2B threaded holes. Licensed machinists, tool and die makers, and maintenance technicians are the primary users.\u003c\/p\u003e\u003cp\u003eThis tap is suited for threading operations in general manufacturing, job shop, and industrial maintenance environments. The straight flute geometry is well matched to short-chipping materials. Compatible material applications include aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel. The plug chamfer style makes it a versatile choice for both through-hole and accessible blind-hole applications where a starting taper is not required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e7\/16-14 UNC thread form with H3 thread limit for standard 2B fit tolerance\u003c\/li\u003e\n\u003cli\u003e4-flute straight flute design optimized for short-chipping materials\u003c\/li\u003e\n\u003cli\u003ePlug chamfer provides moderate lead-in for through-holes and open blind holes\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across a range of work materials\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish  -  no coating buildup to affect thread dimensions\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, no coolant-through requirement\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard replacement or production straight flute plug tap for 7\/16-14 UNC threading operations in aluminum, cast aluminum, cast iron, high-carbon steel, low-carbon steel, and medium-carbon steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the workpiece firmly before tapping and ensure the tap is properly aligned with the pilot hole to avoid bell-mouthing or tap breakage. Use an appropriate tapping fluid or cutting oil matched to the work material  -  dry tapping is not recommended for steel applications. Back the tap out periodically to clear chips when working in deeper holes. This tap does not support coolant-through delivery, so external lubrication is required.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 7\/16-14 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 14\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: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-7\/16 inches (1.071 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-5\/32 inches (3.158 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.323 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.242 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.406 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.689 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\u003eWeight\u003c\/strong\u003e: 0.076 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 101\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: 1121900\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739822194994,"sku":"1121900","price":36.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/326d7ab8b02d8071a42bd324ef4f1ff7_f45d5e94-8a90-4d9e-8fea-28d564475226.jpg?v=1788819297","url":"https:\/\/voomisupply.com\/products\/osg-1121900-straight-flute-plug-tap-7-16-14-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}