Seco 02421525 Lock Screw Torx Plus M5 TP20 Milling Insert

Product Description

The SECO 02421525 is a lock screw designed to secure indexable inserts in milling toolholders. It uses a Torx Plus TP20 drive and an M5 thread with a countersunk head profile. At 10.50 mm overall length, this screw provides reliable clamping force to hold inserts firmly in the pocket during cutting operations. It is compatible with insert style C45011-T20P and is a standard hardware component used by machinists and tool crib technicians maintaining indexable milling tools. Proper insert clamping directly affects cutting stability and insert life, making screw condition and correct torque important during every insert change.

This lock screw is intended for indexable milling applications where Torx Plus drive fasteners are specified. It is used in production machining environments, job shops, and toolroom settings wherever SECO or compatible indexable milling bodies require M5 Torx Plus insert screws. The countersunk head seats flush with the insert pocket surface, keeping the cutting geometry unobstructed. Sold individually per package, with a minimum order quantity of 10 units, making it practical to stock as a consumable alongside indexable inserts.

Key Features

• Torx Plus TP20 drive for positive engagement and reduced cam-out during tightening
• M5 thread size fits standard indexable milling toolholder insert pockets
• Countersunk head design seats flush in the insert pocket
• Compatible with insert style C45011-T20P
• 10.50 mm overall length suits typical indexable milling body seat depths
• Sold as individual units; minimum order quantity of 10 supports consumable stocking

Compatibility

Designed for use with indexable milling insert style C45011-T20P requiring an M5 Torx Plus TP20 lock screw. Verify toolholder manufacturer specifications before ordering to confirm correct screw geometry for your insert pocket.

Installation Notes

Lock screws for indexable tooling are typically replaced by machinists or tool crib personnel during insert indexing or seat maintenance. Always power down and lock out the machine spindle before servicing any toolholder. Use a calibrated Torx Plus TP20 key or torque wrench driver and follow the toolholder manufacturer torque specification for M5 insert screws. Inspect the screw threads and drive recess for wear or damage at each insert change and replace screws that show signs of stripping.