Seco 02440120 Lock Screw Indexables TP7 Torx Plus M2.5

Product Description

The SECO 02440120 is a countersunk lock screw designed to secure indexable inserts in drilling toolholders. It uses a TP7 Torx Plus drive, which provides better torque transfer and reduced driver slippage compared to standard Torx fasteners. The M2.5 thread pitch and 5.20 mm overall length are sized for precision indexable tooling applications. Weighing just 0.01 pounds, this is a small but critical fastener that keeps cutting inserts firmly seated during drilling operations. Machinists and toolroom technicians keep these on hand as routine consumables since insert lock screws are subject to wear and replacement during normal insert changes.

This lock screw is used in indexable drilling toolholders that accept M2.5 threaded insert clamping screws with a countersunk head profile. It is compatible with insert seating hardware in applications where the TP7 Torx Plus drive and T07P-2 key or driver are specified. Typical environments include CNC machining centers and manual drilling setups in production and job-shop settings. The countersunk head design keeps the fastener flush with the toolholder pocket, preventing interference with chip flow during cutting.

Key Features

• TP7 Torx Plus drive for improved torque engagement and reduced cam-out risk
• M2.5 thread size matched to indexable drilling toolholder insert pockets
• Countersunk head profile for flush seating and unobstructed chip clearance
• Compatible with T07P-2 key or driver for precise tightening
• Overall length of 5.20 mm fits standard indexable insert clamping geometry
• Sold individually; minimum order quantity is 10 units

Compatibility

Designed for use with indexable drilling toolholders requiring an M2.5 countersunk lock screw with a TP7 Torx Plus drive. Hardware compatibility is specified for indexable insert clamping applications. Driver compatibility is listed as T07P-2.

Installation Notes

Installation is performed by toolroom technicians or machinists during indexable insert changes. Always power down and lock out the machine spindle before accessing any toolholder. Use the correct T07P-2 Torx Plus key to seat the screw properly — do not substitute a standard Torx driver, as this can damage the drive recess. Inspect the screw threads and the toolholder pocket threads for wear or debris before reinstalling.