{"product_id":"osg-1733201-spiral-flute-tap-7-16-14-unc-vanadium-hss","title":"Osg 1733201 Spiral Flute Tap 7\/16-14 Unc Vanadium Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1733201 is a spiral flute tap designed for cutting 7\/16-14 UNC internal threads in ferrous materials. It features a 45-degree helix angle that evacuates chips upward out of the hole, making it well suited for blind-hole applications where chip packing is a concern. The tap is ground from vanadium high-speed steel and finished with a steam oxide coating to reduce friction and improve lubricity during the cut. With a modified bottoming chamfer, it threads closer to the bottom of a blind bore than a plug or taper tap. Overall length is 3.156 inches. Thread limit is H3, appropriate for general-tolerance UNC threading work.\u003c\/p\u003e\u003cp\u003eThis tap is rated for use in stainless steel, high-carbon steel, low-carbon steel, and medium-carbon steel. It is a single-tap solution for shops and field machinists cutting 7\/16-14 UNC threads in blind holes where a standard plug tap cannot reach the required thread depth. The Series 303 designation places it within OSG's production-grade catalog line for spiral flute taps. Typical applications include manufacturing, maintenance and repair, and fabrication environments where precise thread form and chip control are both required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e45-degree right-hand helix angle for upward chip evacuation in blind holes\u003c\/li\u003e\n\u003cli\u003eModified bottoming chamfer threads closer to the bottom of a blind bore\u003c\/li\u003e\n\u003cli\u003eVanadium high-speed steel construction for wear resistance in ferrous materials\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating reduces friction and built-up edge during threading\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for standard general-tolerance UNC thread fit\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\u003eRated for threading stainless steel, high-carbon steel, low-carbon steel, and medium-carbon steel. Designed for 7\/16-14 UNC blind-hole applications requiring a modified bottoming chamfer profile.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInstallation is performed by machinists or maintenance technicians using a tap wrench, drill press, or CNC tapping cycle. Ensure the pilot hole diameter matches the recommended tap drill size for 7\/16-14 UNC threads before starting. Apply appropriate cutting fluid or tapping compound for the workpiece material, particularly when threading stainless steel. Back the tap out periodically to break and clear chips when working in deep blind holes.\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\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Spiral\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHelix Angle\u003c\/strong\u003e: 45 degrees\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Modified Bottoming\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 14\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\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Stainless Steel, High-Carbon Steel, Low-Carbon Steel, Medium-Carbon Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.156 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.571 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.323 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\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\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 303\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.078 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: 1733201\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51739825832242,"sku":"1733201","price":79.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/d8c9a7d18000eb125ed2d24964ce8686.jpg?v=1788819321","url":"https:\/\/voomisupply.com\/products\/osg-1733201-spiral-flute-tap-7-16-14-unc-vanadium-hss","provider":"Voomi Supply","version":"1.0","type":"link"}