{"product_id":"cleveland-c57604-spiral-point-tap-4-40-unc-hss-oxide","title":"Cleveland C57604 Spiral Point Tap 4-40 Unc Hss Oxide","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C57604 is a spiral point tap designed for through-hole threading in ferrous materials. It cuts a 4-40 UNC thread using a 2-flute, plug chamfer geometry that pushes chips forward ahead of the cutting zone, reducing clogging in blind and through-hole applications. The tap is manufactured from high speed steel with an oxide finish for basic corrosion resistance and reduced friction during cutting. The H2 thread limit and Class 2B fit designation make it suitable for standard commercial-tolerance threaded holes. Installed by machinists, maintenance technicians, and tool-and-die tradespeople, this tap is a reliable choice for small-diameter threading work on steel and cast iron.\u003c\/p\u003e\n\u003cp\u003eThis tap is intended for through-hole threading applications in cast iron and steel workpieces. The plug chamfer distributes the cutting load across several leading threads, making it well suited for production work and general maintenance threading where a starting chamfer is acceptable. The 9\/16-inch thread length and 1-7\/8-inch overall length fit standard tap holders and hand tap wrenches sized for small-diameter taps. It is not designed for blind-hole applications where chip evacuation is restricted.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSpiral point geometry pushes chips forward, keeping the flutes clear during through-hole threading\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across steel and cast iron materials\u003c\/li\u003e\n  \u003cli\u003eOxide finish reduces surface friction and provides basic corrosion resistance\u003c\/li\u003e\n  \u003cli\u003eH2 thread limit with Class 2B fit for standard commercial-tolerance applications\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer distributes cutting load across multiple lead threads for smooth entry\u003c\/li\u003e\n  \u003cli\u003eRight-hand cut, no coolant-through requirement for general shop use\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading of 4-40 UNC threads in cast iron and steel. Compatible with standard tap holders and hand tap wrenches sized for small-diameter taps with a 0.141-inch shank diameter.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eUse in a drill press, CNC machine, or hand tap wrench rated for small-diameter taps. Ensure the pilot hole diameter is correct for a 4-40 UNC tap before beginning threading. Apply cutting fluid appropriate for the workpiece material to extend tap life and improve thread quality. Do not reverse the tap under power without confirming the machine is rated for tapping cycles, as small-diameter taps are susceptible to breakage under torque overload.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 4-40\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: 40\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\u003c\/strong\u003e: Plug\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: H2\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Cast Iron, Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial\u003c\/strong\u003e: High Speed Steel\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: Oxide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 1.875 inches (47.63 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.5625 inches (14.29 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.141 inches (3.58 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 2.79 mm\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1011BO\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: CLEVELAND\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C57604\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51712260964658,"sku":"C57604","price":27.57,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fec7ce4cef5e3cb6fa66833532e67304_40fbf196-754c-4479-bb92-dcd03effe483.jpg?v=1788485743","url":"https:\/\/voomisupply.com\/products\/cleveland-c57604-spiral-point-tap-4-40-unc-hss-oxide","provider":"Voomi Supply","version":"1.0","type":"link"}