{"product_id":"iscar-5921255-threading-insert-16-tpi-un-external-ic808","title":"Iscar 5921255 Threading Insert 16 Tpi Un External IC808","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\n\u003cp\u003eThe ISCAR 5921255 is a laydown-style solid carbide threading insert designed for external UN (Unified National) thread forms at 16 threads per inch (TPI). Coated with a PVD-applied TiAlN finish and offered in manufacturer grade IC808, this insert is built for consistent thread profile accuracy on a wide range of workpiece materials. The right-hand cutting geometry and M-chipbreaker designation make it a practical choice for production threading operations where chip control and tool life are priorities. Qualified machinists and CNC lathe operators working in job shops, production facilities, and toolrooms are the primary users.\u003c\/p\u003e\n\u003cp\u003eThis insert is suited for external threading applications on turning centers and engine lathes where UN thread standards are required. The 16ERM insert style fits compatible ISCAR ISCARTHREAD toolholders designed for laydown threading inserts. With a universal primary workpiece material classification, the IC808 grade handles a broad spectrum of materials including steels, stainless steels, cast irons, non-ferrous alloys, and high-temperature superalloys. It is appropriate for both light production runs and higher-volume threading cycles where dimensional consistency is required.\u003c\/p\u003e\n\u003ch4\u003eKey Features\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eSolid carbide substrate with PVD TiAlN coating for wear resistance and thermal stability\u003c\/li\u003e\n  \u003cli\u003e16 TPI UN external thread form, right-hand cutting direction\u003c\/li\u003e\n  \u003cli\u003eIC808 manufacturer grade rated for universal workpiece material compatibility (H, K, M, N, P, S material codes)\u003c\/li\u003e\n  \u003cli\u003e3\/8 inch (0.3750 inch) inscribed circle with 0.143 inch insert thickness\u003c\/li\u003e\n  \u003cli\u003eM-chipbreaker geometry for effective chip control during threading passes\u003c\/li\u003e\n  \u003cli\u003eConforms to ISO 13399 tooling data standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eCompatibility\u003c\/h4\u003e\n\u003cp\u003eDesigned for use with ISCAR ISCARTHREAD series toolholders that accept the 16ERM laydown threading insert style. Verify toolholder pocket geometry and clamping method before installation.\u003c\/p\u003e\n\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\n\u003cp\u003eInstallation should be performed by a qualified machinist or CNC tooling technician. Power down and lock out the machine spindle before indexing or replacing inserts. Seat the insert fully and evenly in the toolholder pocket and secure the clamping screw to the toolholder manufacturer's specified procedure before resuming cutting. Inspect the insert seat and clamping components for wear or debris prior to installation to ensure proper insert support and thread profile accuracy.\u003c\/p\u003e\n\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 16ERM\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN (Unified National)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: External\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 16\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: IC808\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN, PVD Applied\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eChipbreaker\u003c\/strong\u003e: M\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (0.3750 inch \/ 9.53 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.143 inches\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.0075 inches (0.19 mm)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Universal (H, K, M, N, P, S)\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ISCARTHREAD\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eStandard\u003c\/strong\u003e: ISO 13399\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 5\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.077 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: ISCAR\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5921255\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51737655574834,"sku":"5921255","price":163.94,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/89104b5c63d3a0052c359ff581b63fdf.jpg?v=1788791945","url":"https:\/\/voomisupply.com\/products\/iscar-5921255-threading-insert-16-tpi-un-external-ic808","provider":"Voomi Supply","version":"1.0","type":"link"}