{"product_id":"cleveland-c60760-hand-tap-5-16-18-unc-left-hand-plug-4-flute","title":"Cleveland C60760 Hand Tap 5\/16-18 Unc Left Hand Plug 4-flute","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C60760 is a 5\/16-18 UNC left-hand straight-flute hand tap designed for cutting internal threads in through-hole applications. Built from high speed steel (HSS) with a bright uncoated finish, it delivers consistent thread quality across a wide range of workpiece materials. The plug chamfer (3-5 thread lead) makes it well-suited for starting in a pre-drilled hole and threading through the full depth. With 4 flutes and a Class 3B fit to H3 thread limit, it produces tight-tolerance threads meeting standard UNC specifications. Overall length is 2-23\/32 inches with a 1-1\/8 inch thread length.\u003c\/p\u003e\u003cp\u003eThis tap is used in machine shops, maintenance facilities, and field repair environments where left-hand threaded fasteners are required. Left-hand taps are specified when a standard right-hand thread would loosen under operational torque, such as on rotating spindles, bicycle components, or equipment with reverse-rotation fasteners. It is appropriate for use in cast iron, aluminum and other non-ferrous metals, stainless steel, and carbon steel. The shank diameter is 0.318 inches, fitting standard tap wrench collets and tapping heads sized for this range.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eLeft-hand thread direction for reverse-thread applications\u003c\/li\u003e\n\u003cli\u003ePlug chamfer with 3-5 thread lead for through-hole starting\u003c\/li\u003e\n\u003cli\u003eClass 3B fit, H3 thread limit for tight UNC tolerance control\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction for durability across ferrous and non-ferrous materials\u003c\/li\u003e\n\u003cli\u003eBright uncoated finish compatible with standard cutting fluids\u003c\/li\u003e\n\u003cli\u003e4-flute straight-flute geometry for chip clearance in through-hole cuts\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading in cast iron, non-ferrous metals including aluminum, stainless steel, and steel workpieces requiring 5\/16-18 UNC left-hand Class 3B internal threads.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis tap is installed by hand or with a tap wrench; ensure the correct tap wrench size is selected for the 0.318-inch shank diameter. Always use an appropriate cutting fluid for the workpiece material to extend tool life and improve thread finish. Secure the workpiece firmly before tapping and align the tap perpendicular to the hole to avoid tap breakage. Left-hand taps require counterclockwise rotation to advance the thread.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 5\/16-18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Direction\u003c\/strong\u003e: Left Hand\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: 3B\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Limit\u003c\/strong\u003e: H3\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Straight\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2-23\/32 inches (2.719 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1-1\/8 inches (0.690 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.318 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 3\/8 inches (0.375 inches)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.238 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\/Uncoated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolant Through\u003c\/strong\u003e: No\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Materials\u003c\/strong\u003e: Cast Iron, Non-Ferrous Metal\/Aluminum, Stainless Steel, Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.065 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: C60760\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51715371335986,"sku":"C60760","price":36.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/bb2ea7c1e7b71623dabba846cfb47010_565dc583-080a-4e1c-a787-c78530a3daaa.jpg?v=1788512917","url":"https:\/\/voomisupply.com\/products\/cleveland-c60760-hand-tap-5-16-18-unc-left-hand-plug-4-flute","provider":"Voomi Supply","version":"1.0","type":"link"}