Seco 00049958 Threading Insert 8 Tpi Acme Solid Carbide

Product Description

The SECO 00049958 is a laydown-style threading insert designed for cutting external Acme threads at 8 threads per inch (TPI). Built from solid carbide micrograin substrate with a CP500 manufacturer grade, this insert carries a PVD-applied TiAlN/TiN coating for wear resistance across a wide range of workpiece materials. The 16ER insert style seats in compatible laydown toolholders and cuts right-hand external threads per the Acme thread standard with a 29-degree included angle. With an inscribed circle of 0.375 inches and a thickness of 0.1366 inches, this insert suits production and maintenance threading operations performed by machinists and toolroom technicians.

This insert is suited for external Acme thread generation on lathes and CNC turning centers. The Acme thread form is commonly found on lead screws, vises, linear actuators, and power-transmission components in industrial and machinery applications. The CP500 grade with universal material compatibility rating makes it appropriate for use on cast iron, steel alloys, non-ferrous metals, and certain high-temperature alloys. The Snap Tap series designation indicates compatibility with the corresponding toolholder system for secure, repeatable insert positioning during threading passes.

Key Features

• Solid carbide micrograin substrate with CP500 grade for extended tool life
• PVD-applied TiAlN/TiN coating enhances heat and wear resistance
• Right-hand external Acme thread form at 8 TPI with 29-degree included angle
• Universal primary workpiece material compatibility covering cast iron, steel, non-ferrous, and superalloys
• 16ER laydown insert style for use in Snap Tap series toolholders
• ISO-standard insert geometry for consistent fitment and indexing

Compatibility

Designed for use in SECO Snap Tap series laydown threading toolholders accepting the 16ER insert style. Suitable for external Acme threading applications across universal workpiece material grades including material codes K, M, N, P, and S per ISO classification.

Installation Notes

Threading inserts of this type are installed and indexed by qualified machinists or toolroom technicians. Power down and lock out the turning machine before changing or indexing the insert. Ensure the toolholder pocket and clamping surfaces are clean and free of chips before seating the insert. Follow the toolholder manufacturer torque specifications for the clamping screw rather than applying general estimates, and verify thread pitch setup with a test pass before committing to full-depth cuts.