{"product_id":"cleveland-c54444-hand-tap-1-4-20-unc-plug-4-flute-hss","title":"Cleveland C54444 Hand Tap 1\/4-20 Unc Plug 4-flute Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe CLEVELAND C54444 is a 1\/4-20 UNC straight flute hand tap designed for cutting internal threads in both blind holes and through-holes. Built from high speed steel with a bright uncoated finish, it features a plug chamfer lead and four flutes for efficient chip evacuation during hand tapping operations. The tap measures 2.5 inches overall with a thread length of 0.63 inches and carries a Class 2B fit with an H1 thread limit, making it suitable for standard tolerance threading work. Machinists and toolroom technicians reach for this tap when producing machine-screw-size threads in production and maintenance environments.\u003c\/p\u003e\u003cp\u003eThe C54444 is suited for threading operations in alloy steel, carbon steel, aluminum, and free-machining stainless steel. The plug chamfer — typically 3 to 5 threads of chamfer lead — makes it the standard choice for starting a thread in a pre-drilled hole where the full thread depth is not required from the very first pass. It fits common tap wrenches sized for a 0.191-inch square drive. Applications span general machining, repair work, and light production threading in job shops and maintenance facilities.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4-20 UNC thread form with right-hand thread direction\u003c\/li\u003e\n\u003cli\u003ePlug chamfer lead for blind hole and through-hole threading\u003c\/li\u003e\n\u003cli\u003eFour straight flutes for chip clearance in short-chipping materials\u003c\/li\u003e\n\u003cli\u003eHigh speed steel construction — no coating, bright finish\u003c\/li\u003e\n\u003cli\u003eH1 thread limit and Class 2B fit for standard tolerance applications\u003c\/li\u003e\n\u003cli\u003eNo coolant-through requirement — suitable for hand tapping with cutting fluid applied manually\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/4-20 UNC hand tap compatible with tap wrenches and T-handle holders accepting a 0.191-inch square drive shank. Suitable for use in alloy steel, carbon steel, aluminum, and free-machining stainless steel workpieces.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eHand tapping should be performed by a machinist or qualified technician using the correct tap drill size for 1\/4-20 UNC threads prior to tapping. Apply a suitable cutting fluid for the workpiece material and back off the tap periodically to break chips and prevent binding. Secure the workpiece firmly before tapping and use a calibrated tap wrench to maintain perpendicularity to the hole. Never force a tap past resistance — forced tapping is the primary cause of tap breakage.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20\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: Right Hand\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: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlute Style\u003c\/strong\u003e: Straight\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: H1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 inches (63.5 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 0.63 inches (25.4 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches (6.48 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 inches (4.85 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Length\u003c\/strong\u003e: 0.3125 inches (7.94 mm)\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\u003eMaterial Application\u003c\/strong\u003e: Alloy Steel, Aluminum, Carbon Steel, Free-Machining Stainless Steel\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Blind Hole Threading, Through-Hole Threading\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: 1002\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.12 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: C54444\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"CLEVELAND CONTROLS","offers":[{"title":"Default Title","offer_id":51692551340338,"sku":"C54444","price":28.18,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/33f11dc3c36bd4a555be90d6d055b529.jpg?v=1788299126","url":"https:\/\/voomisupply.com\/products\/cleveland-c54444-hand-tap-1-4-20-unc-plug-4-flute-hss","provider":"Voomi Supply","version":"1.0","type":"link"}