{"product_id":"osg-2494603-straight-flute-tap-7-16-14-unc-bottoming","title":"Osg 2494603 Straight Flute Tap 7\/16-14 Unc Bottoming","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 2494603 is a straight flute bottoming tap designed for cutting internal threads in ferrous and non-ferrous materials. Built from vanadium high-speed steel with a nitride coating, it delivers extended tool life and reduced friction during tapping operations. It cuts a 7\/16-14 UNC right-hand thread to an H3 thread limit, making it suitable for applications where precise thread tolerance is required. With 4 flutes and a bottoming chamfer, it is optimized for threading close to the bottom of blind holes. Machinists and maintenance professionals use this tap in both manual and machine tapping setups.\u003c\/p\u003e\u003cp\u003eThe 2494603 is intended for use in machine tapping and hand tapping applications across manufacturing, maintenance, and repair environments. Its bottoming chamfer allows threading to within a few threads of the bottom of a blind hole, making it well suited for situations where a full thread engagement near the hole bottom is required. The nitride coating improves performance in aluminum and cast iron, two of the listed material applications. It is a Series 240 tap from OSG.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eBottoming chamfer for threading close to the bottom of blind holes\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel construction for durability in hard and abrasive materials\u003c\/li\u003e\n\u003cli\u003eNitride coating reduces friction and improves wear resistance\u003c\/li\u003e\n\u003cli\u003e4-flute design for chip control during straight flute tapping operations\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for controlled tolerance in precision threading\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 7\/16-14 UNC thread standard\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eRated for use in aluminum and cast iron material applications. Designed as an OEM-style replacement or direct tooling selection for any setup requiring a 7\/16-14 UNC bottoming tap to H3 tolerance.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eMachining professionals should ensure the workpiece is securely fixtured before tapping. Power down or disengage the drive before changing taps in a machine setup. Use appropriate cutting fluid for the material being tapped, particularly with cast iron or aluminum. Follow standard shop practices and applicable machine safety protocols when operating tapping equipment.\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\u003c\/strong\u003e: Bottoming\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 (0.858 inches decimal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3-5\/32 inches (3.157 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 Length\u003c\/strong\u003e: 0.406 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\u003eNeck Length\u003c\/strong\u003e: 1.713 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: Vanadium High-Speed Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\u003c\/strong\u003e: Nitride\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Cast Iron\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: 240\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.07 pounds\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: 2494603\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51747857989938,"sku":"2494603","price":42.69,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/1e4d3ba87a5215ea00d2e77a80a06f9f_aa1e5b38-2411-4ca9-ba28-ff393c8141d9.jpg?v=1788886304","url":"https:\/\/voomisupply.com\/products\/osg-2494603-straight-flute-tap-7-16-14-unc-bottoming","provider":"Voomi Supply","version":"1.0","type":"link"}