Carmex 16IR14UNBXC Threading Insert 14 Tpi 3/8 Inch Internal Un

Product Description

The CARMEX 16IR14UNBXC is a solid carbide laydown threading insert designed for internal UN thread cutting at 14 threads per inch. It features a 60-degree included angle and a PVD-applied TiN coating for extended tool life and wear resistance. With a 3/8 inch (0.3750 inch) inscribed circle and a thickness of 0.1460 inches, this insert fits standard laydown toolholders used for right-hand internal threading operations. It is suited for use on CNC lathes and turning centers where precise thread form and consistent finish are required across a wide range of workpiece materials.

This insert is rated for universal workpiece material compatibility, covering material groups H, K, M, N, P, and S. That range includes carbon and alloy steels, stainless steels, cast irons, non-ferrous metals, and high-temperature alloys. It is typically installed by machinists and CNC operators in job shop, production machining, and manufacturing environments where UN-standard internal threads are cut in medium to high volumes. The laydown style seating geometry provides rigid support and reliable repeatability at the cutting edge.

Key Features

• Solid carbide construction for rigidity and heat resistance in threading operations
• PVD TiN coating extends cutting edge life and reduces built-up edge
• 14 TPI UN thread form with 60-degree included angle for standard unified thread profiles
• Right-hand internal thread orientation for standard bore threading applications
• Universal material grade compatibility across steel, stainless, cast iron, non-ferrous, and exotic alloys
• Compliant with CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed as an OEM-style replacement and standard-fit insert for laydown internal threading toolholders accepting the 16IR insert style in UN thread form applications.

Installation Notes

Installation is performed by machinists on CNC lathes or manual turning equipment. Power down and lock out the spindle before seating or replacing the insert. Use the appropriate torx or hex key to the toolholder manufacturer's specified seating procedure to ensure the insert is fully seated and clamped before resuming cuts. Verify thread pitch and hand orientation against the job drawing before beginning the threading pass.