Kennametal 1724354 Threading Insert 12 Tpi Unj Carbide

Product Description

The KENNAMETAL 1724354 is a laydown threading insert designed for external UNJ thread cutting at 12 threads per inch. Manufactured from solid carbide with a PVD-applied TiAlN coating, it carries the KC5010 grade designation. The insert follows the LT16ER12UNJ ISO code, features a right-hand cutting orientation, and fits a 3/8-inch inscribed circle. It is engineered for use on CNC lathes and turning centers where tight thread-form tolerances and tool life consistency are required. Licensed machinists and CNC operators in production and MRO environments install this insert for threading aerospace, industrial, and fluid-system components.

This insert is suited for external UNJ threading operations on materials including steel, stainless steel, cast iron, superalloys, and titanium. UNJ thread forms feature a controlled root radius, making them common in aerospace and high-cycle fatigue applications. The ER insert style and size 16 designation are standard in laydown threading toolholders configured for that geometry. The TiAlN PVD coating supports dry or semi-dry cutting conditions and maintains edge integrity across high-temperature cutting passes.

Key Features

• Solid carbide construction with PVD TiAlN coating for extended tool life in demanding materials
• Right-hand external UNJ thread form at 12 TPI for aerospace-standard root-radius thread profiles
• KC5010 grade optimized for steel, stainless steel, cast iron, superalloys, and titanium
• ER insert style, size 16, in standard laydown orientation for secure toolholder seating
• 3/8-inch inscribed circle with 0.1430-inch thickness for precise insert pocket fit
• Hole diameter of 0.1551 inches for standard clamping screw engagement

Compatibility

Designed as an OEM-style replacement threading insert for laydown-style ER threading toolholders accepting size 16 inserts with a 3/8-inch inscribed circle and LT16ER-series geometry.

Installation Notes

This insert is installed and replaced by machinists and CNC turning specialists. Power down and lock out the machine spindle before changing inserts. Use the correct Torx or hex key for the clamping screw without applying excessive force to the carbide body. Confirm toolholder pocket cleanliness and insert seating before resuming cutting operations.