{"product_id":"osg-1601207-straight-flute-tap-5-16-24-unf-bottoming-hss","title":"Osg 1601207 Straight Flute Tap 5\/16-24 Unf Bottoming Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe OSG 1601207 is a straight flute bottoming tap designed for cutting 5\/16-24 UNF right-hand internal threads to the bottom of blind holes. Made from high-speed steel with a nitride and oxide coating, this tap delivers controlled thread engagement in both aluminum and cast iron. It carries a 3B class of fit and H3 thread limit, making it suitable for applications that require a standard tolerance fit. The 4-flute straight flute design provides chip control in short-chipping materials. Overall length is 2-23\/32 inches with a thread length of 1-1\/8 inches.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for use in machining, fabrication, and maintenance environments where 5\/16-24 UNF threads are required. The bottoming chamfer allows threading close to the bottom of blind holes, a critical requirement in precision assembly work. It is suited for use in manual tapping, CNC tapping, and drill press applications when working with aluminum and cast iron workpieces. Machinists, tool and die makers, and maintenance technicians are the primary users.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer for threading to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003e4 straight flutes designed for short-chipping materials such as aluminum and cast iron\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction for durability across general machining applications\u003c\/li\u003e\n  \u003cli\u003eNitride and oxide coating improves wear resistance and reduces galling\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit and 3B class of fit for standard tolerance internal threads\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, 5\/16-24 UNF, Series 101C\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 5\/16-24 UNF internal threads in aluminum and cast iron workpieces. Compatible with standard tapping chucks, tap handles, and CNC rigid tapping setups that accept the 0.318-inch shank diameter of this tap.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eSecure the workpiece firmly before tapping and ensure the tap is properly aligned to avoid cross-threading or tap breakage. Use an appropriate cutting fluid for the material being tapped  -  sulfurized oil for cast iron and a light cutting fluid for aluminum is a common practice. For CNC applications, verify spindle speed and feed rate are appropriate for the tap size and material before running the cycle. Inspect the tap for wear or chipping regularly, as a damaged tap can compromise thread quality and may become difficult to extract from a blind hole.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-24 UNF\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: Bottoming\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-1\/8 inches (0.835 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-23\/32 inches (2.720 inches decimal)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.375 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.238 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 1.323 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\u003c\/strong\u003e: Nitride and Oxide\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: 101C\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.04 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: 1601207\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51743052693810,"sku":"1601207","price":23.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/326d7ab8b02d8071a42bd324ef4f1ff7_28075794-3814-43fd-9a4c-68120e12c53a.jpg?v=1788841991","url":"https:\/\/voomisupply.com\/products\/osg-1601207-straight-flute-tap-5-16-24-unf-bottoming-hss","provider":"Voomi Supply","version":"1.0","type":"link"}