{"product_id":"kennametal-5479704-spiral-point-tap-5-16-24-unf-hss-e-oxide","title":"Kennametal 5479704 Spiral Point Tap 5\/16-24 Unf Hss-e Oxide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe KENNAMETAL 5479704 is a spiral point tap designed for through-hole threading applications in ferrous and hard materials. Built from HSS-E (high-speed steel with cobalt) and finished with an oxide coating, this tap handles 5\/16-24 UNF threads with a 3-flute, plug chamfer configuration to a 3B class of fit. The spiral point geometry pushes chips forward ahead of the cut rather than packing them in the flute, making it well suited for through-hole work where chip evacuation is critical. Overall length is 3.54 inches (90.00 mm) and thread length is 0.59 inches (14.99 mm). Weight is 0.0598 pounds. Right-hand thread direction. Part of the KENNAMETAL T820 series, material grade KSP39.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for through-hole threading in steel, stainless steel, and cast iron — materials common in manufacturing, MRO, and precision machining environments. The plug chamfer distributes cutting load across several lead threads, which is appropriate for starting in a pre-drilled through-hole. The 5\/16-24 UNF thread form is widely used in fastener applications requiring fine-thread engagement. The HSS-E substrate provides increased toughness and heat resistance compared to standard HSS, extending tool life in interrupted or harder materials. This tap is used by machinists, tool and die makers, and maintenance technicians working in machine shops and industrial settings.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward for efficient through-hole chip evacuation\u003c\/li\u003e\n  \u003cli\u003eHSS-E (cobalt high-speed steel) substrate for improved heat and wear resistance in tough materials\u003c\/li\u003e\n  \u003cli\u003eOxide coating reduces friction and provides basic corrosion protection during storage and use\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer distributes cutting load across multiple lead threads for smooth thread starts\u003c\/li\u003e\n  \u003cli\u003e3B class of fit delivers standard tolerance threading suitable for most general fastener applications\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, no coolant-through — compatible with standard tapping setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading in steel, stainless steel, and cast iron. Material application data from KENNAMETAL specifies these three material categories as intended use cases for this tap. No specific machine or fixture compatibility is stated in available product data.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap is installed by machinists or maintenance technicians using a tap wrench, tapping head, or CNC tapping attachment — ensure the spindle is stopped and the workpiece is secured before tool changes. Always pre-drill the correct tap drill size for 5\/16-24 UNF threads before tapping and verify hole depth exceeds the required thread engagement length for through-hole applications. Use appropriate cutting fluid for the workpiece material, particularly when tapping stainless steel or cast iron. Do not exceed the tap's rated material hardness range, as HSS-E tools are not designed for hardened steel above approximately 35 HRC without coatings rated for that purpose — no hardness limit is specified in the available data, so consult KENNAMETAL documentation for precise application limits.\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\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads per Inch\u003c\/strong\u003e: 24\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 3B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStyle\u003c\/strong\u003e: Spiral Point\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: HSS-E (High-Speed Steel with Cobalt)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: KSP39\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 3.54 inches (90.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.59 inches (14.99 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Pitch\u003c\/strong\u003e: 0.0417 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.3150 inches (8.00 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.79 inches (20.06 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 6.20 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: T820\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOversize\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInterrupted Thread\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0598 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: KENNAMETAL\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5479704\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51737876037938,"sku":"5479704","price":97.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/e4c5744b41d66dbfa6b4ae253830ae21.jpg?v=1788794747","url":"https:\/\/voomisupply.com\/products\/kennametal-5479704-spiral-point-tap-5-16-24-unf-hss-e-oxide","provider":"Voomi Supply","version":"1.0","type":"link"}