{"product_id":"value-collection-msc-04470308-straight-flute-tap-1-4-28-unf","title":"Value Collection MSC-04470308 Straight Flute Tap 1\/4-28 Unf","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe VALUE COLLECTION MSC-04470308 is a straight flute tap designed for cutting internal threads in through-holes and open-work applications. Built from high-speed steel with a bright, uncoated finish, this tap produces 1\/4-28 UNF right-hand threads to a 3B class of fit, making it suitable for general-purpose threading in ferrous and non-ferrous materials. The taper chamfer distributes cutting load gradually across the leading threads, reducing startup force and improving thread accuracy. With an H3 thread limit, it holds tight tolerances appropriate for standard fastener applications. Machinists and maintenance technicians install this tap by hand or with a tapping head on a drill press or CNC machine.\u003c\/p\u003e\u003cp\u003eThis tap is suited for production and maintenance threading work in shops, fabrication facilities, and field repair settings. The 1\/4-28 UNF thread form is widely used in precision mechanical assemblies, instrumentation, and fastener applications requiring fine thread engagement. The taper chamfer makes it appropriate for through-holes where a starting lead is needed. It is used across metalworking, mechanical assembly, and general machining environments where controlled internal thread cutting is required.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e1\/4-28 UNF thread form for fine-pitch internal threading\u003c\/li\u003e\n\u003cli\u003eTaper chamfer distributes cutting force across multiple leading threads for easier starts\u003c\/li\u003e\n\u003cli\u003eHigh-speed steel construction provides hardness and wear resistance across a range of workpiece materials\u003c\/li\u003e\n\u003cli\u003eBright, uncoated finish suitable for use with standard cutting fluids\u003c\/li\u003e\n\u003cli\u003eH3 thread limit for consistent 3B class-of-fit results\u003c\/li\u003e\n\u003cli\u003e4 flutes with right-hand thread direction for standard tapping operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned as a standard 1\/4-28 UNF straight flute tap compatible with conventional tap wrenches, tapping heads, and machine spindles accepting standard shank tap tooling.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eSecure the workpiece firmly and ensure the tap is aligned perpendicular to the hole surface before starting. Apply appropriate cutting fluid for the workpiece material to reduce heat and extend tool life. Advance the tap in measured increments and back off periodically to break chips and prevent binding. Inspect the tap for wear or damage before each use, as a worn or chipped tap can produce out-of-tolerance threads or break in the hole.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Size\u003c\/strong\u003e: 1\/4-28 UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNF\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNumber of Flutes\u003c\/strong\u003e: 4\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eChamfer Type\u003c\/strong\u003e: Taper\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\u003eThread Direction\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Length\u003c\/strong\u003e: 1 inch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOverall Length\u003c\/strong\u003e: 2.5 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\u003eWeight\u003c\/strong\u003e: 0.06 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: VALUE COLLECTION\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: MSC-04470308\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"VALUE COLLECTION","offers":[{"title":"Default Title","offer_id":51690679927090,"sku":"MSC-04470308","price":14.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/975d694dd71f97f1cdd750206db16ca7.jpg?v=1788273847","url":"https:\/\/voomisupply.com\/products\/value-collection-msc-04470308-straight-flute-tap-1-4-28-unf","provider":"Voomi Supply","version":"1.0","type":"link"}