Seco 00049864 Threading Insert 18 Tpi Un Carbide CP500

Product Description

The SECO 00049864 is a laydown threading insert designed for external UN thread cutting at 18 threads per inch. Built from solid carbide in the CP500 grade with a PVD-applied TiAlN/TiN finish, it delivers consistent thread form geometry on a wide range of workpiece materials. The 16ER insert style seats in compatible laydown toolholders and produces a 60-degree included angle profile standard for UN thread forms. With a 3/8 inch inscribed circle and a thickness of 0.1366 inches, it is sized for toolholders commonly used in production turning and threading operations. Licensed machinists and CNC lathe operators are the primary users of this insert.

This insert is suited for external threading on turning centers and engine lathes handling UN-standard fastener threads, fittings, and threaded components. The CP500 grade is rated for universal application across cast iron, non-ferrous metals, steel, and superalloys, covering workpiece material codes K, M, N, P, and S. It fits within the SECO Snap-Tap series tooling system and conforms to ISO insert standards. Typical applications include production threading of bolts, shafts, and threaded adapters in job-shop and production machining environments.

Key Features

• Solid carbide construction with PVD-applied TiAlN/TiN coating for wear resistance
• CP500 manufacturer grade rated for universal workpiece materials including steel, cast iron, non-ferrous, and superalloys
• 18 TPI UN external thread form with 60-degree included angle
• Right-hand cutting geometry for standard external threading operations
• 3/8 inch inscribed circle diameter with 0.1366 inch insert thickness
• ISO-standard insert geometry; part of the SECO Snap-Tap series

Compatibility

Designed as an OEM-style replacement and production insert for Snap-Tap series laydown threading toolholders accepting the 16ER insert style with a 3/8 inch inscribed circle. Conforms to ISO insert standards.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque and clamping specifications. Power down and lock out the machine spindle before changing inserts. Inspect the toolholder pocket and clamping screw for wear or debris before seating a new insert. Follow applicable shop safety procedures and manufacturer guidelines for insert handling.