{"product_id":"cleveland-c57630-spiral-point-tap-3-8-24-unc-hss","title":"Cleveland C57630 Spiral Point Tap 3\/8-24 Unc Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C57630 is a spiral point tap designed for through-hole threading in ferrous materials including cast iron and steel. It carries a 3\/8-24 UNC thread form with a plug chamfer and three flutes, driving chips forward ahead of the cut to keep the flute clear during the threading operation. Built from high speed steel with an oxide finish for basic corrosion resistance, this tap holds an H3 thread limit and a Class 2B fit tolerance. Overall length is 2.9375 inches with a thread length of 1.25 inches, making it suited to standard-depth through-hole applications in production and maintenance environments. Licensed machinists and trade professionals are the primary users.\u003c\/p\u003e\u003cp\u003eThis tap is built for through-hole threading applications where chip ejection is critical to thread quality. It performs well in cast iron and steel workpieces commonly encountered in mechanical, HVAC equipment fabrication, plumbing manifold work, and general industrial maintenance. The plug chamfer distributes the cutting load across several leading threads, reducing tool stress at entry. The right-hand thread direction is standard for the majority of fastener applications in these trades. The 1011BO series designation is the Cleveland product line identifier for this configuration.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSpiral point geometry drives chips forward for clean through-hole threading without clogging\u003c\/li\u003e\n\u003cli\u003ePlug chamfer entry distributes cutting load and eases tap start\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction handles cast iron and steel without specialized coatings\u003c\/li\u003e\n\u003cli\u003eH3 thread limit with Class 2B fit for reliable mating with standard UNC fasteners\u003c\/li\u003e\n\u003cli\u003eOxide finish provides basic rust resistance during storage and use\u003c\/li\u003e\n\u003cli\u003eRight-hand, no coolant-through design suits general-purpose machine or hand tapping\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading of 3\/8-24 UNC threads in cast iron and steel workpieces. Compatible with standard tap holders and chucks accepting a 0.381-inch shank diameter.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by licensed machinists or qualified tradespeople using a tap wrench, drill press, or CNC tapping cycle. Secure the workpiece fully before tapping and ensure the pilot hole diameter matches the recommended tap drill size for 3\/8-24 UNC threads. Apply cutting fluid appropriate for the base material to extend tool life and improve thread finish. Reverse the tap periodically when hand-tapping to break chips, even though the spiral point design ejects chips forward in through-hole operations.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 3\/8-24\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\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClass of Fit\u003c\/strong\u003e: 2B\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\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\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\u003eOverall Length\u003c\/strong\u003e: 2.9375 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1.25 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.381 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.51 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: 1011BO\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 1.2 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: CLEVELAND\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: C57630\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51722199007538,"sku":"C57630","price":29.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/fec7ce4cef5e3cb6fa66833532e67304_da784ad4-46a1-4c1b-acdb-7f84d46e1f03.jpg?v=1788587238","url":"https:\/\/voomisupply.com\/products\/cleveland-c57630-spiral-point-tap-3-8-24-unc-hss","provider":"Voomi Supply","version":"1.0","type":"link"}