{"product_id":"cleveland-c57140-spiral-point-tap-1-4-28-unf-2-flute","title":"Cleveland C57140 Spiral Point Tap 1\/4-28 Unf 2 Flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe CLEVELAND C57140 is a spiral point tap designed for bottoming applications in 1\/4-28 UNF threaded holes. Made from high speed steel with a bright finish, this tap is built for right-hand threading in blind holes where full thread depth close to the bottom is required. It features 2 flutes, a H3 thread limit, and a 3B class of fit, making it suitable for close-tolerance work in production and maintenance environments. Licensed machinists, HVAC fabricators, and plumbing tradespeople use this tap when threading smaller fastener holes in metal components and fixtures.\u003c\/p\u003e\n\u003cp\u003eThis tap is rated for use in aluminum, copper alloys, low carbon steel, and magnesium. Its 0.63 inch thread length and 0.39 inch neck length allow access into blind holes without excessive overhang. The 2.5 inch overall length provides enough shank to seat securely in a tap handle or machine spindle. It is well suited for field repair work, sheet metal fabrication, and light production threading where a 1\/4-28 UNF thread form is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eBottoming chamfer design allows threading close to the bottom of blind holes\u003c\/li\u003e\n  \u003cli\u003eHigh speed steel construction provides durability across a range of workpiece materials\u003c\/li\u003e\n  \u003cli\u003eH3 thread limit and 3B class of fit for close-tolerance thread production\u003c\/li\u003e\n  \u003cli\u003eBright finish with no coolant-through requirement suits hand tapping and low-speed machine use\u003c\/li\u003e\n  \u003cli\u003eRight-hand thread direction, 1\/4-28 UNF form, compatible with standard 1\/4-28 fasteners\u003c\/li\u003e\n  \u003cli\u003e2 flutes support chip clearance in short threading applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for cutting 1\/4-28 UNF right-hand threads in blind holes through aluminum, copper alloys, low carbon steel, and magnesium workpieces. Part of the Cleveland Series 1012 tap line.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThis tap should be installed in a properly sized tap handle or machine spindle before use. Always ensure the workpiece is secured and the correct tap drill size for a 1\/4-28 UNF thread has been used prior to tapping. Apply appropriate cutting fluid for the workpiece material to extend tool life and improve thread quality. Do not force the tap if resistance increases sharply, as this may indicate a chip jam or contact with the hole bottom.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28\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: 28\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: Bottoming\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\u003eOverall Length\u003c\/strong\u003e: 2.5 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.63 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNeck Length\u003c\/strong\u003e: 0.39 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\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: Bright\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMaterial Application\u003c\/strong\u003e: Aluminum, Copper Alloys, Low Carbon Steel, Magnesium\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: 1012\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: C57140\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51719241498930,"sku":"C57140","price":28.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/204614e102bd33ad13bdc967562f0b3a.jpg?v=1788558337","url":"https:\/\/voomisupply.com\/products\/cleveland-c57140-spiral-point-tap-1-4-28-unf-2-flute","provider":"Voomi Supply","version":"1.0","type":"link"}