Carmex 16ER16UNBXC Threading Insert 16 Tpi Un Solid Carbide

Product Description

The CARMEX 16ER16UNBXC is a laydown-style threading insert engineered for external UN thread forms on CNC lathes and threading machines. Built from solid carbide with a PVD-applied TiN coating, it delivers consistent thread geometry at 16 threads per inch with a 60-degree included angle. The insert measures 0.375 inches inscribed circle and 0.146 inches thick. It is designed for right-hand external threading operations and is rated for universal workpiece material compatibility, making it suitable across a broad range of ferrous and non-ferrous stock. Machinists and CNC programmers in production and job-shop environments rely on this insert for precise, repeatable UN thread profiles.

This insert is used in external threading applications on lathes equipped with laydown-style toolholders accepting the ER insert geometry. It is suited for threading operations on materials coded H, K, M, N, P, and S, covering alloy steels, cast irons, stainless steels, non-ferrous metals, structural steels, and heat-resistant superalloys. Typical applications include threaded fastener production, hydraulic fittings, and general-purpose mechanical components requiring UN-standard thread forms. It is sold individually, with a minimum order quantity of 10 units.

Key Features

• Solid carbide substrate for high wear resistance and dimensional stability at cutting speed
• PVD TiN coating reduces friction and extends tool life across varied workpiece materials
• 16 TPI UN thread form with 60-degree included angle for standard unified thread profiles
• Right-hand external cut orientation for conventional lathe threading passes
• Universal material compatibility across H, K, M, N, P, and S material codes
• Manufactured to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed as an OEM-style replacement or standard production insert for laydown-style external threading toolholders accepting 16 ER geometry inserts.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the toolholder is secured before seating or replacing the insert. Use the correct torque wrench and insert screw per the toolholder manufacturer specifications to avoid insert movement under cutting loads. Confirm thread pitch and insert orientation against the job setup sheet before commencing the threading pass.