{"product_id":"balax-12664-000-thread-forming-tap-1-4-20-unc-plug-hss","title":"Balax 12664-000 Thread Forming Tap 1\/4-20 Unc Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe BALAX 12664-000 is a thread forming tap designed for through-hole threading applications in metal fabrication, maintenance, and production work. Built from high-speed steel (HSS) with a bright, uncoated finish, this plug-chamfer tap cold-forms a 1\/4-20 UNC internal thread without cutting chips, reducing the risk of chip contamination in blind or through-hole assemblies. It carries a Class 3B fit and an H4 thread limit, delivering tight tolerances suited for precision fastener applications. The BXP series design includes a single oil groove to aid lubrication during the forming process. Overall length is 2.5 inches with a tapping depth of 1.0 inch.\u003c\/p\u003e\u003cp\u003eThis tap is suited for through-hole threading in ductile and malleable materials such as aluminum, brass, low-carbon steel, and similar workpiece metals. The plug chamfer, with 4 chamfered threads, allows for easy starting in a pre-drilled hole and is the standard choice for general through-hole production tapping. It is used by machinists, tool and die makers, maintenance technicians, and fabricators working with 1\/4-20 UNC fastener specifications in both job-shop and production-line environments.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eThread forming (chipless) process eliminates chip contamination in through-hole work\u003c\/li\u003e\n\u003cli\u003e1\/4-20 UNC thread form with Class 3B fit and H4 thread limit for precise tolerances\u003c\/li\u003e\n\u003cli\u003ePlug chamfer with 4 chamfered threads for reliable hole entry and starting\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction for durability across a range of ductile workpiece materials\u003c\/li\u003e\n\u003cli\u003eSingle oil groove aids lubrication and promotes consistent thread forming\u003c\/li\u003e\n\u003cli\u003eRight-hand thread direction, bright uncoated finish, BXP series\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for through-hole threading applications requiring a 1\/4-20 UNC internal thread at Class 3B fit. Consult tooling references or the BALAX application guide for recommended tap drill sizes and compatible workpiece materials for the BXP series.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThread forming taps require a correctly sized forming drill rather than a standard tap drill; using an undersized hole will overload the tap and risk breakage. Apply a suitable tapping fluid or cutting oil appropriate for the workpiece material before and during the tapping operation. Secure the workpiece firmly and use a calibrated tap wrench or CNC tapping cycle to maintain proper axial alignment. Always power down or de-energize any machine tool before manually handling or changing tooling.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-20 UNC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNC\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: H4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Plug\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfered Threads\u003c\/strong\u003e: 4P\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\u003eFinish\u003c\/strong\u003e: Bright \/ Uncoated\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: 0.79 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.0 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShank Diameter\u003c\/strong\u003e: 0.255 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSquare Size\u003c\/strong\u003e: 0.191 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOil Grooves\u003c\/strong\u003e: 1\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\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: BXP\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.2 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: BALAX\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 12664-000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BALAX","offers":[{"title":"Default Title","offer_id":52066822127922,"sku":"12664-000","price":38.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4fd69d71763d96061420f3482ba1c28b.jpg?v=1790045829","url":"https:\/\/voomisupply.com\/products\/balax-12664-000-thread-forming-tap-1-4-20-unc-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}