Hertel 4006148 Torx Screw T8 M2.5 X 0.45 Indexable

Product Description

The HERTEL 4006148 is a T8 Torx countersunk screw designed to secure indexable inserts in compatible toolholders. Built for precision clamping in indexable insert drill applications, this screw features an M2.5 x 0.45 thread and a flat point for controlled, repeatable seating. The overall length is 0.2165 inches (5.50 mm) and the head diameter measures 0.1358 inches. At 0.01 pounds, it is a lightweight but critical fastener for maintaining insert stability and cutting accuracy. Licensed machinists and toolroom technicians use this screw as a direct replacement or spare in HID-series indexable toolholders.

This screw is intended for use in HID-series indexable insert drill toolholders. It is a common service and replacement item in CNC machining environments, job shops, and production machining operations where indexable insert drills are part of the regular tooling inventory. Keeping spare screws on hand reduces downtime when inserts are rotated or replaced during production runs. The countersunk head design keeps the screw profile low and clear of the cutting zone.

Key Features

• T8 Torx drive for precise torque application with a standard T8 driver
• M2.5 x 0.45 thread size for secure insert clamping in HID-series holders
• Countersunk head with flat point for flush, stable seating
• Overall length of 0.2165 inches (5.50 mm) for correct insert pocket fit
• Compatible with HPMT074006-GP indexable inserts
• Minimum order quantity of 5 units supports toolroom stocking

Compatibility

Compatible with HID-series indexable insert drill toolholders. Confirmed compatible insert: HPMT074006-GP. Toolholder style compatibility is listed as HID.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Power down and de-energize the machine spindle before changing inserts or fasteners. Use a calibrated T8 Torx driver to seat the screw; avoid over-torquing, which can strip the M2.5 thread or crack the insert. Inspect the screw and insert pocket for debris or damage before reinstalling.