Seco 00049854 Threading Insert 16 Tpi Un Carbide CP500

Product Description

The SECO 00049854 is a laydown threading insert designed for external UN thread forms at 16 threads per inch. Built from solid carbide in the CP500 grade, it carries a PVD-applied TiAlN/TiN finish that supports wear resistance across a broad range of workpiece materials. The 16ER insert style fits standard Snap-Tap toolholders configured for right-hand external threading operations. With a 3/8-inch inscribed circle and a thickness of 0.1366 inches, this insert is sized for precision threading work on turning centers and engine lathes. The 60-degree included angle matches the UN thread standard geometry.

This insert is used in threading operations on cast iron, stainless steel, and carbon or alloy steel workpieces, as identified by ISO material codes K, M, and P. It is suited to production turning environments where consistent thread form accuracy and tool life are priorities. The A1 chipbreaker geometry assists with chip control during external threading passes on these material groups. Machinists and CNC operators running UN-specification threads on general-purpose and precision turning applications will find this insert a direct-fit solution for compatible Snap-Tap tooling systems.

Key Features

• Solid carbide CP500 grade with PVD TiAlN/TiN coating for elevated wear resistance
• 16 TPI external UN thread form with 60-degree included angle
• Right-hand cut, 16ER insert style for Snap-Tap series toolholders
• A1 chipbreaker geometry for chip control on steel, stainless, and cast iron
• 3/8-inch inscribed circle; 0.1366-inch thickness for precise seating
• ISO-standard geometry; compatible with K, M, and P material classifications

Compatibility

Designed for use in SECO Snap-Tap series toolholders accepting the 16ER insert style. Confirmed workpiece material compatibility includes cast iron (ISO K), stainless steel (ISO M), and steel (ISO P).

Installation Notes

Installation is performed by qualified machinists or CNC operators. Power down and lock out the machine spindle before seating or removing the insert. Ensure the toolholder pocket is clean and free of debris before placing the insert to maintain accurate thread form geometry. Follow the toolholder manufacturer's specified clamping torque procedure for 16ER-style inserts.