Accupro 40279051 Clamping Screw M4.5 Torx Plus Milling

Product Description

The ACCUPRO 40279051 is a clamping screw designed to secure indexable inserts in milling cutter toolholders. Part of the CI series, this steel fastener features an M4.5 thread and a Torx Plus drive, providing reliable clamping force and resistance to cam-out during insert changes. With an overall length of approximately 0.51 inches (13 mm) and a weight of 0.02 pounds, it is a precision-machined replacement hardware component intended for use by machinists and toolroom technicians working with indexable milling systems.

This clamping screw is suited for use with SOKU 15 style toolholders and compatible milling cutter bodies that require M4.5 clamping screws. It is typically used in CNC milling operations where indexable insert tooling is standard. The screw is sold individually, making it a direct replacement when a clamping screw is lost, damaged, or worn during routine insert indexing and maintenance.

Key Features

• M4.5 thread size for precise clamping of indexable inserts
• Torx Plus drive reduces cam-out risk during tightening and removal
• CI series steel construction for durability under milling loads
• Overall length of 0.51 inches (13 mm) for SOKU 15 toolholder compatibility
• Sold as a single-piece replacement unit

Compatibility

Compatible with SOKU 15 style milling cutter toolholders requiring M4.5 clamping screws. Intended for use with indexable milling cutter hardware as specified by the toolholder manufacturer.

Installation Notes

Installation is performed by qualified machinists or toolroom technicians during indexable insert changes or toolholder maintenance. Power down and lock out the machine spindle before removing or installing clamping screws. Use the correct Torx Plus key of the appropriate size to avoid fastener damage. Follow the toolholder manufacturer's recommended seating procedure when securing the insert.