{"product_id":"osg-1707701-spiral-point-tap-5-16-24-unf-plug-3-flute","title":"Osg 1707701 Spiral Point Tap 5\/16-24 Unf Plug 3 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe OSG 1707701 is a spiral point tap designed for cutting 5\/16-24 UNF internal threads in demanding materials including hardened steel, stainless steel, high-nickel alloy, and titanium. Built from powdered metal with a steam oxide coating, this plug-chamfer tap drives chips forward ahead of the cutting edge, making it well-suited for through-hole applications. It carries an H3 thread limit and a 3B class of fit, delivering consistent tolerance control in production and repair threading operations. With an overall length of 2.72 inches and a thread length of 0.799 inches, the tool fits standard tapping chucks and holders used in machine shop and field service environments.\u003c\/p\u003e\u003cp\u003eThis tap is intended for machinists, maintenance technicians, and toolroom professionals working with tough ferrous and exotic alloy materials. The 5\/16-24 UNF thread form appears commonly in aerospace, automotive, and industrial equipment assemblies where fine-thread engagement is required for load-bearing fastener joints. It is appropriate for CNC tapping, manual tapping machines, and hand-tap use in through-hole configurations where chip evacuation ahead of the tap is practical.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry pushes chips forward, reducing chip packing in through-hole applications\u003c\/li\u003e\n\u003cli\u003ePowdered metal construction provides increased wear resistance versus standard high-speed steel\u003c\/li\u003e\n\u003cli\u003eSteam oxide coating improves lubricity and reduces galling, especially in stainless steel and high-nickel alloys\u003c\/li\u003e\n\u003cli\u003eH3 thread limit ensures consistent 3B class of fit across production runs\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, 3 flutes, plug chamfer for standard entry and threading depth control\u003c\/li\u003e\n\u003cli\u003eRated for hardened steel, stainless steel, high-nickel alloy, and titanium material applications\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for cutting 5\/16-24 UNF threads per the OSG 312NI series specification. Suitable for through-hole tapping operations in hardened steel, stainless steel, high-nickel alloy, and titanium workpieces where a 3B class of fit is required.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap should be installed in a tapping chuck or collet holder appropriate for the 0.318-inch shank diameter. Ensure the machine spindle or tapping arm is properly aligned with the pre-drilled hole before engaging the tap to avoid bell-mouthing or tap breakage. Use a cutting fluid or tapping compound rated for the workpiece material, particularly when threading stainless steel or high-nickel alloys. Inspect the tap for wear or chipping between uses, as damaged cutting edges in hard materials can cause rapid tool failure or workpiece damage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\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\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Right Hand\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\u003eMaterial\u003c\/strong\u003e: Powdered Metal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Steam Oxide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.72 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.799 inches (1-1\/8 inches nominal)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\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\u003eMaterial Application\u003c\/strong\u003e: Hardened Steel, Stainless Steel, High-Nickel Alloy, Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 312NI\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.055 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: 1707701\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"OSG","offers":[{"title":"Default Title","offer_id":51754465788210,"sku":"1707701","price":76.89,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/f037cfbe3d1872fe259a871295acd92f_ca492a37-9054-4d8d-8d78-53d1858e2a2f.jpg?v=1788945705","url":"https:\/\/voomisupply.com\/products\/osg-1707701-spiral-point-tap-5-16-24-unf-plug-3-flute","provider":"Voomi Supply","version":"1.0","type":"link"}