Seco 00000813 Indexable Lock Screw TP10 M3.5 Torx Plus

Product Description

The SECO 00000813 is a lock screw designed to secure indexable inserts in grooving and milling toolholders. It uses a Torx Plus TP10 drive and M3.5 thread to clamp the insert firmly against the pocket seat, maintaining accurate positioning under cutting loads. The countersunk head profile keeps the screw flush with the insert, preventing interference with the workpiece or chip flow. At 0.01 pounds per unit, it is a precision fastener used by machinists and toolroom technicians on CNC lathes, machining centers, and manual milling machines where insert retention is critical to tool life and surface finish.

This lock screw is suited for use in grooving and milling indexable toolholders that accept M3.5 insert-clamping screws with a Torx Plus drive interface. It is a direct-fit replacement or maintenance spare for operations running indexable insert tooling where screw wear, cross-threading, or loss during insert changes is a routine service need. Sold in packages of one unit with a minimum order quantity of ten units.

Key Features

• TP10 Torx Plus drive reduces cam-out and driver wear compared to standard Torx during high-frequency insert changes
• M3.5 thread size matches standard indexable insert clamping pockets for grooving and milling toolholders
• Countersunk head profile sits flush to avoid interference with insert seating and chip evacuation
• Overall length of 8.80 mm provides consistent thread engagement depth in standard toolholder pockets
• Lightweight at 0.01 pounds, precision-machined for consistent clamping torque

Compatibility

Designed for indexable grooving and milling toolholders requiring an M3.5 lock screw with a Torx Plus TP10 drive. Compatible hardware type is indexable insert. Verify thread pitch and head geometry against the toolholder specification before ordering.

Installation Notes

Lock screw installation and replacement is performed by machinists or toolroom technicians during indexable insert changes. Always use the correct TP10 Torx Plus bit to avoid stripping the drive recess. Ensure the insert pocket and screw threads are free of chips and debris before seating the screw. Do not exceed the toolholder manufacturer's recommended clamping torque specification, as overtightening can shear the screw or damage the pocket thread.