Tungaloy 7011251 Clamp Screw T15 Torx M4x0.7

Product Description

The TUNGALOY 7011251 is a clamp screw designed to secure indexable inserts in compatible milling toolholders. It features a T15 Torx drive head and an M4x0.7 thread, providing precise clamping torque without fastener slip during interrupted or heavy milling cuts. The screw measures 0.394 inches in overall length with a head diameter of 0.224 inches and a right-hand thread engagement length of 0.217 inches. It is part of the Dopent and FixRmill series from TUNGALOY and is installed by CNC machinists and toolroom technicians during insert indexing or replacement procedures.

This clamp screw is used in end mill, face mill, and milling cutter applications across both production and toolroom environments. It is compatible with select TUNGALOY toolholder styles and insert geometries used in horizontal and vertical milling operations. Typical use cases include insert changeovers on multi-tooth milling cutters where consistent clamping force is required to maintain insert seating and runout tolerances.

Key Features

• T15 Torx drive head reduces cam-out risk during insert clamping
• M4x0.7 right-hand thread for secure, repeatable engagement
• 0.394-inch overall length fits within compact toolholder clamp pockets
• Head diameter of 0.224 inches for positive insert hold-down contact
• Compatible with Dopent and FixRmill series toolholders
• Single-piece hardware replacement - sold individually

Compatibility

Compatible with the following TUNGALOY toolholder styles: EEN09, HRP12R, TEN09R200, TEN09R250, TEN09R300, TEN09R400, TEN09R400500, TEN09R600, and TRP12R. Also compatible with end mill and milling holder hardware. Insert compatibility includes PN*U0905, RPMT1204, and RPMT1204EN-M* series indexable inserts.

Installation Notes

Installation is performed by a machinist or toolroom technician during scheduled insert indexing or replacement. Before servicing, remove the toolholder from the spindle and ensure all cutting motion has ceased. Use a calibrated T15 Torx key or bit driver to seat the screw - do not use impact tools. Follow the toolholder manufacturer torque guidelines printed in the toolholder documentation to avoid thread damage or insert movement under load.