Carmex 16ER8ACMEP30 Threading Insert 8 Tpi Solid Carbide

Product Description

The CARMEX 16ER8ACMEP30 is a solid carbide laydown threading insert designed for external Acme thread cutting at 8 threads per inch. This uncoated P30 grade insert features a 29-degree included angle, a 3/8 inch inscribed circle, and a thickness of 0.146 inches. It is manufactured to ISO standards and suited for right-hand threading operations on CNC lathes and manual threading setups. The P30 carbide grade corresponds to material grade C5, providing wear resistance across a broad range of workpiece materials. Machinists and toolroom operators working in production or job-shop environments rely on this insert for consistent Acme thread form accuracy on external profiles.

This insert is used for generating external Acme thread forms, which are common in lead screw, jack screw, and power transmission applications. The 8 TPI configuration suits medium-pitch Acme threads found in general industrial and mechanical assemblies. The insert is compatible with a wide range of workpiece materials, as indicated by its universal material classification covering codes H, K, M, N, P, and S. It fits standard 16ER-style insert pockets on compatible toolholders used in turning centers and engine lathes.

Key Features

• Solid carbide construction, uncoated, P30 manufacturer grade (material grade C5)
• External Acme thread form with 29-degree included angle
• 8 threads per inch, right-hand cut
• 3/8 inch (0.3750 inch) inscribed circle diameter
• 0.146 inch insert thickness
• Certified to CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use in 16ER-style insert pockets on compatible external threading toolholders. Universal workpiece material classification covers a broad range of metals and materials corresponding to ISO codes H, K, M, N, P, and S.

Installation Notes

Installation is performed by a machinist or toolroom technician. Before seating the insert, ensure the toolholder pocket is clean and free of chips or debris. Secure the insert with the appropriate torx or clamp fastener per the toolholder manufacturer specification. Always verify thread form and pitch with a thread gauge after the first pass before proceeding with full-depth threading.