Carmex 16IR16UNC-5/P30 Threading Insert 16 Tpi Solid Carbide

Product Description

The CARMEX 16IR16UNC-5/P30 is a solid carbide laydown threading insert designed for internal UN thread cutting at 16 threads per inch. It features a right-hand cutting orientation and an included angle of 29 degrees, making it suited for precision threading operations on a wide range of workpiece materials. With a 3/8-inch inscribed circle and a thickness of 0.146 inches, this insert fits standard laydown toolholders used in CNC turning and threading applications. The uncoated P30 carbide grade delivers consistent edge integrity across diverse material types without the variability introduced by coatings.

This insert is intended for internal threading operations following the UN thread standard. It is appropriate for use in production machining environments where precise thread form control is required. The universal material grade designation makes it applicable across steel, stainless, cast iron, non-ferrous metals, and high-temperature alloys, giving machinists flexibility across varied job requirements. It is sold individually with a minimum order quantity of 10 pieces.

Key Features

• Solid carbide construction with uncoated finish for consistent edge sharpness
• 16 TPI UN internal thread profile with 29-degree included angle
• Right-hand cutting orientation for standard internal threading setups
• 3/8-inch inscribed circle fits common laydown insert toolholders
• P30 manufacturer grade and C-5 material grade for broad material compatibility
• Certified to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use with laydown-style internal threading toolholders accepting a 3/8-inch inscribed circle insert. Compatible with workpiece materials classified under grades H, K, M, N, P, and S, covering steel, stainless steel, cast iron, non-ferrous, and superalloy applications.

Installation Notes

Installation should be performed by a qualified machinist or CNC tooling technician. Ensure the machine spindle is fully stopped and the toolholder is properly secured before seating or replacing the insert. Confirm insert orientation matches the right-hand thread cutting direction before engaging the workpiece. Follow the toolholder manufacturer's clamping specifications and applicable shop safety procedures during insert changeover.