Seco 02440217 Lock Screw TP8 Torx Plus M2.5 Thread

Product Description

The SECO 02440217 is a countersunk lock screw designed to secure indexable inserts in milling toolholders. It features an M2.5 thread and a TP8 Torx Plus drive, providing a precise and reliable clamping interface between the insert and the toolholder seat. The screw has an overall length of 6.80 millimeters and is engineered to the dimensional standards required for proper insert retention at milling speeds and cutting forces. Installation and replacement are performed by machinists and tooling technicians during insert indexing or toolholder maintenance on the shop floor.

This lock screw is used in indexable milling applications where insert security directly affects surface finish, tool life, and dimensional accuracy. It is compatible with the R215.59-06/08 toolholder style and is driven with a T08P-3 key or driver. The screw is sold in single-piece package quantities with a minimum order of 10 units, making it a standard replenishment item for tooling cribs and machine shop consumables inventory.

Key Features

• M2.5 thread size for use in indexable milling insert seats
• TP8 Torx Plus drive type for positive, cam-out-resistant torque transfer
• Countersunk head geometry for flush seating against the insert face
• Compatible with T08P-3 driver key for consistent torque application
• Designed for R215.59-06/08 toolholder style compatibility
• 6.80 millimeter overall length to match OEM insert clamping geometry

Compatibility

Compatible with R215.59-06/08 toolholder style. Works with Insert Style C02507-T08P and complete inserts CCMX 0603 and CCMX 08T3. Hardware compatibility is classified for insert clamping applications in indexable milling toolholders.

Installation Notes

Installation is performed by machinists or tooling technicians during routine insert indexing or replacement. Power down and de-energize the machine spindle before accessing any toolholder. Use the correct T08P-3 Torx Plus driver to avoid stripping the drive recess — do not substitute standard Torx drivers. Follow the toolholder manufacturer's torque guidelines for M2.5 clamping screws as specified in the toolholder documentation.