{"product_id":"iscar-5902157-laydown-threading-insert-18-tpi-unj-ic908","title":"Iscar 5902157 Laydown Threading Insert 18 Tpi Unj IC908","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe ISCAR 5902157 is a solid carbide laydown threading insert designed for internal UNJ thread cutting at 18 threads per inch. Manufactured to the 11IR insert style, it carries ISCAR's IC908 grade with a PVD-applied TiAlN coating, a combination suited for demanding threading operations across a broad range of workpiece materials. The insert features a 1\/4 inch (0.250 inch decimal) inscribed circle, a thickness of 0.126 inches, and a 0.07 mm corner radius. Right-hand cutting geometry makes it a standard fit for conventional internal threading passes. Machinists and toolroom technicians running CNC lathes or manual threading setups install this insert into compatible ISCAR ISCARTHREAD toolholders.\u003c\/p\u003e\u003cp\u003eThis insert is intended for internal UNJ threading applications, a thread form commonly specified in aerospace and high-reliability fastener standards. It is suited for use on machining centers and CNC turning equipment where controlled thread form and surface finish are required. The IC908 grade with PVD coating performs across universal workpiece material categories, covering steel, stainless, cast iron, non-ferrous, and high-temperature alloy classifications as indicated by material grade codes C1, C2, C6, and C7 and workpiece codes H, K, M, N, P, and S.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eIC908 solid carbide grade with PVD TiAlN coating for wear resistance across multiple material groups\u003c\/li\u003e\n\u003cli\u003e11IR insert style, right-hand cutting, for internal UNJ thread profiles\u003c\/li\u003e\n\u003cli\u003e18 TPI thread pitch for standard UNJ fastener thread engagement\u003c\/li\u003e\n\u003cli\u003e1\/4 inch inscribed circle (0.250 inch decimal) for precise toolholder seating\u003c\/li\u003e\n\u003cli\u003e0.126 inch insert thickness providing rigid support during threading passes\u003c\/li\u003e\n\u003cli\u003eCompliant with ISO 13399 insert identification standards\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use with ISCAR ISCARTHREAD series toolholders accepting the 11IR insert style. Compatible with workpiece material grades C1, C2, C6, and C7 covering material codes H, K, M, N, P, and S per supplier specification.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eInsert installation and indexing should be performed by a qualified machinist with the machine powered down and spindle locked. Use the appropriate ISCAR torx or clamp key to seat the insert securely in the toolholder pocket — do not overtighten by hand or with non-specified tools. Verify thread form with a UNJ thread gauge after first pass before committing to full production threading. Follow shop safety protocols and applicable OSHA machine guarding requirements when changing inserts on live equipment.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: 11IR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 11\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Material\u003c\/strong\u003e: Solid Carbide\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: IC908\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial Grade\u003c\/strong\u003e: C1, C2, C6, C7\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UNJ\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeries\u003c\/strong\u003e: ISCARTHREAD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating\/Finish\u003c\/strong\u003e: TiAlN Coated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 1\/4 inch (0.250 inch decimal \/ 6.35 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCorner Radius\u003c\/strong\u003e: 0.07 mm\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.126 inches\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\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: 0.3 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: ISCAR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 5902157\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"ISCAR","offers":[{"title":"Default Title","offer_id":51753005842738,"sku":"5902157","price":203.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/4439c4c8083e10148bfba0774e39b05f.jpg?v=1788932062","url":"https:\/\/voomisupply.com\/products\/iscar-5902157-laydown-threading-insert-18-tpi-unj-ic908","provider":"Voomi Supply","version":"1.0","type":"link"}