{"product_id":"balax-12890-000-thread-forming-tap-1-4-28-unf-plug-hss","title":"Balax 12890-000 Thread Forming Tap 1\/4-28 Unf Plug Hss","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe BALAX 12890-000 is a thread forming tap designed for through-hole threading in a variety of production and maintenance machining applications. Unlike cut taps, thread forming taps displace material rather than cutting it, producing stronger threads with no chips to clear. This plug-style tap is manufactured from high-speed steel with a bright uncoated finish and carries an H10 thread limit, making it well suited for work in softer metals and ductile materials. It measures 2.5 inches in overall length with a thread length of 0.79 inches and a tapping depth of 1.0 inch. The shank diameter is 0.255 inches with a 0.191-inch square drive. Installation is performed by machinists and tooling technicians using a standard tap wrench or CNC tapping head.\u003c\/p\u003e\n\u003cp\u003eThis tap is used in through-hole threading operations where chip-free forming is preferred over conventional cutting. The plug chamfer provides a gradual lead-in of four chamfered threads, making it a practical choice for through-holes in production runs or repair work. The BXP series designation indicates it is built for general-purpose forming applications. Typical installations include threading pre-drilled through-holes in aluminum, brass, and other ductile metals in manufacturing, fabrication, and mechanical assembly environments.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eThread forming design displaces material for stronger, chip-free threads\u003c\/li\u003e\n  \u003cli\u003e1\/4-28 UNF right-hand thread specification\u003c\/li\u003e\n  \u003cli\u003ePlug chamfer with four chamfered threads for smooth lead-in\u003c\/li\u003e\n  \u003cli\u003eHigh-speed steel construction with bright uncoated finish\u003c\/li\u003e\n  \u003cli\u003eH10 thread limit for consistent dimensional control\u003c\/li\u003e\n  \u003cli\u003eSingle oil groove to aid lubrication during forming\u003c\/li\u003e\n  \u003cli\u003e2.5-inch overall length with 0.191-inch square drive shank\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for through-hole threading operations requiring a 1\/4-28 UNF right-hand thread in ductile materials. Compatible with standard tap wrenches, T-handle holders, and CNC tapping heads accepting a 0.255-inch shank diameter with a 0.191-inch square drive.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eThread forming taps require a specific forming tap drill size  -  do not use a standard cut tap drill chart, as the recommended hole diameter is larger than for cut taps. Apply a suitable tapping fluid or cutting oil appropriate for the workpiece material before and during tapping. Secure the workpiece fully before operation to prevent movement. Inspect the tap for wear or deformation before each use, and replace if thread quality degrades.\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChamfer\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 Limit\u003c\/strong\u003e: H10\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTapping Depth\u003c\/strong\u003e: 1.0 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\u003eOverall Length\u003c\/strong\u003e: 2.5 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\u003eSquare Size\u003c\/strong\u003e: 0.191 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\u003eApplication\u003c\/strong\u003e: Through-Hole Threading\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOil Grooves\u003c\/strong\u003e: 1\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\n\u003ch4\u003eStandard Information\u003c\/h4\u003e\n\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: 12890-000\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BALAX","offers":[{"title":"Default Title","offer_id":51972635033906,"sku":"12890-000","price":38.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/66ecfc4c8b9560e1c8316b80fc4c0623.jpg?v=1789970051","url":"https:\/\/voomisupply.com\/products\/balax-12890-000-thread-forming-tap-1-4-28-unf-plug-hss","provider":"Voomi Supply","version":"1.0","type":"link"}