Carmex 16ER16UNC-5/P30 Threading Insert 16 Tpi Solid Carbide

Product Description

The CARMEX 16ER16UNC-5/P30 is a solid carbide laydown threading insert designed for external UN thread cutting at 16 threads per inch. It carries a 60-degree included angle and fits a 3/8-inch inscribed circle, with a thickness of 0.146 inches. The uncoated carbide substrate is classified at manufacturer grade P30 and material grade C5, making it suited for threading across a broad range of workpiece materials. This insert is installed by machinists and CNC lathe operators performing external thread-turning operations in production or job-shop environments.

This insert is intended for right-hand external UN threading applications on CNC and manual turning equipment. Its universal primary workpiece material rating covers ferrous and non-ferrous materials, including steel, stainless steel, cast iron, aluminum, and high-temperature alloys. It is a single insert sold individually, with a minimum order quantity of 10 units, making it appropriate for both toolroom restocking and production-run inventory.

Key Features

• Solid carbide construction at grade C5/P30 for consistent thread-form accuracy
• Uncoated substrate well-suited for universal workpiece material applications
• 16 TPI external UN thread profile with 60-degree included angle
• Right-hand cutting orientation for standard external threading operations
• 3/8-inch (0.375 inches) inscribed circle with 0.146-inch insert thickness
• Compliant with CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use in 16 ER-style laydown threading insert pockets on external threading toolholders that accept a 3/8-inch inscribed circle insert. Suitable for UN thread-form applications across universal workpiece materials.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Ensure the machine spindle is fully stopped and all power is isolated before changing inserts. Seat the insert firmly and evenly in the toolholder pocket and secure with the appropriate clamping screw to manufacturer torque guidelines. Verify thread-form alignment with a thread gauge before returning the machine to full production.