Seco 00046335 Laydown Threading Insert 16UN CP500

Product Description

The SECO 00046335 is a laydown threading insert designed for cutting external UN threads in a left-hand orientation. Manufactured from solid carbide in the CP500 grade, this insert carries a TiAlN/TiN PVD coating that supports performance across a broad range of workpiece materials. The 16EL insert style is sized with a 9.53 mm inscribed circle and a thickness of 3.47 mm (0.1366 inches), and it cuts at 16 threads per inch with a 60-degree included angle. It belongs to the Snap Tap series and meets ISO standards. Licensed machinists and CNC operators working in job shop and production environments are the primary users.

This insert is suited for external left-hand UN thread turning operations on lathes and turning centers. The CP500 grade with PVD coating is rated for universal primary workpiece material compatibility, covering cast iron, stainless and high-temperature alloys, non-ferrous metals, and steel — corresponding to material codes K, M, N, P, and S. It is appropriate for both light-production and prototype threading where consistent 60-degree UN thread form accuracy is required.

Key Features

• Solid carbide substrate in CP500 grade for broad material range capability
• TiAlN/TiN PVD coating for improved wear resistance and surface finish
• Left-hand external UN thread form, 16 TPI, 60-degree included angle
• 16EL insert style with 9.53 mm inscribed circle for positive laydown seating
• Snap Tap series design for quick insert indexing and repeatable positioning
• ISO standards compliance

Compatibility

Designed as an OEM-style replacement threading insert for toolholders accepting the 16EL laydown insert style within the Snap Tap series.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and the turret or toolpost is locked before indexing or replacing the insert. Seat the insert fully into the pocket and torque the clamping screw to the toolholder manufacturer's specification — do not over-tighten, as carbide inserts are brittle. Verify thread form and pitch with a thread gauge after first-piece setup before running production.