Seco 02415354 Lock Screw T15P Torx Plus M3.5 X 0.6

Product Description

The SECO 02415354 is a countersunk lock screw designed to secure indexable inserts in threading toolholders. It uses a T15P Torx Plus drive and an M3.5 x 0.6 thread, providing reliable clamping force during high-speed or interrupted threading operations. The countersunk head profile seats flush with the toolholder pocket, keeping the cutting edge fully exposed. At 8.10 mm overall length, this screw is a direct-fit fastener for indexable threading tools that require the C03508-T15P insert style. Installation and replacement are straightforward tasks for machinists and tool room technicians working with indexable turning or threading systems.

This lock screw is used in indexable threading toolholders where insert retention and repeatable positioning are critical. It is suited for CNC turning centers, lathes, and threading stations running indexable inserts. The T15P Torx Plus drive reduces cam-out risk during tightening compared to standard Torx or hex drives, making it a preferred choice in production environments where screws are changed frequently during insert indexing. This item is sold individually but is subject to a minimum order quantity of 10 units.

Key Features

• T15P Torx Plus drive reduces cam-out during insert changes
• M3.5 x 0.6 thread size for precise, secure clamping in indexable toolholders
• Countersunk head profile seats flush to keep the cutting zone clear
• 8.10 mm overall length fits C03508-T15P insert style pockets
• Compatible with threading indexable tool type applications
• Sold as single-piece quantity with a minimum order of 10 units

Compatibility

Designed for use with indexable inserts using the C03508-T15P insert style in SECO threading toolholders requiring an M3.5 x 0.6 lock screw with T15P Torx Plus drive.

Installation Notes

Lock screw replacement and insert indexing should be performed by a qualified machinist or tool room technician with the toolholder removed from the machine or with the spindle fully locked and de-energized. Use a calibrated T15P Torx Plus driver or key to achieve consistent seating without overtightening, which can strip the thread or crack the insert. Always inspect the screw threads and toolholder pocket for wear or damage before reinstalling an insert. Discard any screw that shows thread deformation or a damaged drive recess.