{"product_id":"kennametal-1743922-threading-insert-18-tpi-un-kc5025","title":"Kennametal 1743922 Threading Insert 18 Tpi Un KC5025","description":"\u003ch3\u003eProduct Description\u003c\/h3\u003e\u003cp\u003eThe KENNAMETAL 1743922 is a solid carbide laydown threading insert designed for single-point thread cutting on CNC lathes and turning centers. Carrying the ISO code LT16NR18UN, it cuts right-hand internal UN threads at 18 threads per inch (TPI). The insert is manufactured from carbide with a PVD-applied TiAlN coating, which improves heat resistance and tool life when threading steel, stainless steel, cast iron, superalloys, and titanium. The NR insert style and size code 16 conform to standard toolholder geometry, making fitment straightforward for machinists and toolroom technicians working with compatible boring bar holders.\u003c\/p\u003e\u003cp\u003eThis insert is suited for internal threading operations in production and job-shop environments where UN thread forms are required. At 18 TPI, it covers common fastener and fitting thread pitches found in mechanical assemblies across industrial, automotive, and aerospace applications. The 3\/8-inch inscribed circle and 0.143-inch thickness place it in the small-to-medium insert category, appropriate for threading bores in ferrous and exotic-alloy workpieces. Minimum order quantity is 10 inserts; each package contains 1 insert.\u003c\/p\u003e\u003ch4\u003eKey Features\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003eSolid carbide substrate with PVD TiAlN coating for extended tool life on ferrous and exotic materials\u003c\/li\u003e\n\u003cli\u003eRight-hand internal UN thread form at 18 TPI\u003c\/li\u003e\n\u003cli\u003eNR insert style, size code 16, ISO code LT16NR18UN\u003c\/li\u003e\n\u003cli\u003e3\/8-inch (9.53 mm) inscribed circle for consistent geometry and seating\u003c\/li\u003e\n\u003cli\u003eManufacturer grade KC5025 optimized for steel, stainless steel, cast iron, superalloys, and titanium\u003c\/li\u003e\n\u003cli\u003eCutting edge to theoretical edge length of 0.031 inches; face of insert to tip centerline of 0.039 inches\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eCompatibility\u003c\/h4\u003e\u003cp\u003eDesigned for use in NR-style laydown threading toolholders accepting a size 16 insert with a 3\/8-inch inscribed circle. Compatible workpiece materials include steel, stainless steel, cast iron, superalloys, and titanium as specified by KENNAMETAL for the KC5025 grade.\u003c\/p\u003e\u003ch4\u003eInstallation Notes\u003c\/h4\u003e\u003cp\u003eThis insert is installed by a machinist or toolroom technician into a compatible NR-style laydown threading holder; consult the toolholder manufacturer's torque specification for the clamping screw. Power down and lock out the machine spindle before changing inserts. Inspect the insert pocket and clamping surfaces for chips or debris before seating the new insert to ensure proper contact geometry. Follow applicable shop safety procedures and machine guarding requirements during the insert change.\u003c\/p\u003e\u003ch4\u003eTechnical Specifications\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eISO Code\u003c\/strong\u003e: LT16NR18UN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Style\u003c\/strong\u003e: NR\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Size Code\u003c\/strong\u003e: 16\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Grade\u003c\/strong\u003e: KC5025\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\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoating Process\u003c\/strong\u003e: PVD\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Standard\u003c\/strong\u003e: UN\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThread Type\u003c\/strong\u003e: Internal\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInsert Hand\u003c\/strong\u003e: Right Hand\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThreads Per Inch\u003c\/strong\u003e: 18\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInscribed Circle\u003c\/strong\u003e: 3\/8 inch (9.53 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThickness\u003c\/strong\u003e: 0.143 inches (3.44 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHole Diameter\u003c\/strong\u003e: 0.1551 inches (3.94 mm)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCutting Edge to Theoretical Edge Length\u003c\/strong\u003e: 0.031 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFace of Insert to Tip Centerline\u003c\/strong\u003e: 0.039 inches\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Workpiece Material\u003c\/strong\u003e: Steel, Stainless Steel, Cast Iron, Superalloys, Titanium\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUNSPSC Code\u003c\/strong\u003e: 23291804\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeight\u003c\/strong\u003e: 0.0106 pounds\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Quantity\u003c\/strong\u003e: 1 insert per package\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMinimum Order Quantity\u003c\/strong\u003e: 10\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch4\u003eStandard Information\u003c\/h4\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand\u003c\/strong\u003e: KENNAMETAL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Part Number\u003c\/strong\u003e: 1743922\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"KENNAMETAL","offers":[{"title":"Default Title","offer_id":51753426780466,"sku":"1743922","price":624.76,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0270\/4519\/9983\/files\/c92d0d848843a2587cce49c67fe56d53.jpg?v=1788936687","url":"https:\/\/voomisupply.com\/products\/kennametal-1743922-threading-insert-18-tpi-un-kc5025","provider":"Voomi Supply","version":"1.0","type":"link"}