Iscar 5995090 Threading Insert 14 Tpi Unj IC908 Carbide

Product Description

The ISCAR 5995090 is a solid carbide laydown threading insert designed for external UNJ thread turning at 14 threads per inch. Carrying the IC908 manufacturer grade and a PVD-applied TiAlN coating, this insert delivers wear resistance and thermal stability across a wide range of workpiece materials. It features a 3/8 inch (0.3750 inch decimal) inscribed circle, a 0.1430 inch thickness, and a 0.011 inch corner radius. The right-hand cutting orientation makes it suitable for standard external threading operations on CNC lathes and turning centers. Installation and setup are performed by machinists and CNC operators working to UNJ thread standards.

This insert is built for external UNJ threading applications where aerospace and precision-standard thread form compliance is required. The universal primary workpiece material rating - covering material codes H, K, M, N, P, and S - means it handles steel, stainless, cast iron, non-ferrous, and superalloy workpieces. It is sized to the 16ER insert style within the ISCARTHREAD series, making it a direct fit for compatible 16ER laydown threading toolholders used in production and job-shop turning environments.

Key Features

• IC908 grade solid carbide substrate with PVD TiAlN coating for extended tool life
• 14 TPI external UNJ thread form for aerospace and precision threading applications
• Universal workpiece material compatibility: steel, stainless, cast iron, non-ferrous, and superalloys
• 3/8 inch inscribed circle, 16ER insert style for laydown toolholder compatibility
• Right-hand cutting orientation for standard external thread turning
• Conforms to ISO 13399 cutting tool data standards

Compatibility

Designed for use in 16ER-style laydown threading toolholders within the ISCARTHREAD series. Suitable for external UNJ threading at 14 TPI across workpiece material groups H, K, M, N, P, and S per ISO classification.

Installation Notes

Threading inserts should be installed by qualified machinists or CNC operators with the machine fully stopped and in a safe, locked-out state. Seat the insert firmly against the toolholder pocket and tighten the clamping screw to the toolholder manufacturer specified torque. Confirm insert orientation and thread hand before initiating a threading pass. Follow all applicable shop safety procedures and machine tool manufacturer guidelines during setup and changeover.