Seco 02440234 Lock Screw TP15 Torx Plus M4 Octo Mill

Product Description

The SECO 02440234 is a countersunk lock screw designed to secure indexable inserts in milling applications. It features a Torx Plus TP15 drive and M4 thread, providing reliable clamping force and precise insert positioning during cutting operations. Compatible with the T15P-3 key driver, this screw is part of the Octo Mill series and is suited for use in high-demand milling environments where insert retention and repeatability are critical. Installation and replacement are performed by machinists and tooling technicians during routine insert indexing or toolholder maintenance.

This lock screw is intended for use in Octo Mill series milling toolholders. It is designed for indexable insert clamping in metalworking and machining operations, both in production shop and job shop environments. The countersunk head profile seats flush against the insert, maintaining proper tool geometry. This screw is sold individually, with a minimum order quantity of 10 units.

Key Features

• Torx Plus TP15 drive for positive engagement and reduced risk of cam-out during tightening
• M4 thread size for compatibility with Octo Mill series toolholder insert pockets
• Countersunk head profile seats flush for proper insert seating and geometry
• Compatible with T15P-3 key driver for precise torque application
• Designed for indexable insert style C04008-T15P and OF.. 05.. insert family
• Overall length of 7.80 millimeters for compact, low-profile clamping

Compatibility

Designed for use with the SECO Octo Mill series toolholders. Compatible with indexable insert style C04008-T15P and the OF.. 05.. complete insert family. Requires a T15P-3 key driver for installation.

Installation Notes

Lock screw installation and replacement should be performed by a qualified machinist or tooling technician. Power down and de-energize the machine spindle before accessing the toolholder. Use the specified T15P-3 Torx Plus driver to seat the screw properly — do not substitute standard Torx drivers, as this may damage the drive recess. Follow the toolholder manufacturer's recommended tightening procedure for insert clamping.