Kennametal 1137204 Lock Screw T25 Torx M6x1

Product Description

The KENNAMETAL 1137204 is a lock screw designed for indexable toolholders used in metal cutting and machining operations. It features a T25 Torx drive with a socket head and an M6 x 1 thread pitch. This screw secures indexable inserts or clamping hardware within the toolholder body, maintaining precise insert positioning during turning, milling, or boring operations. It is compatible with clamp and wedge clamping systems and is specified for use in WWLN-style toolholders. The part weighs approximately 0.011 pounds, making it a lightweight but critical fastener in the cutting tool assembly. Machinists, toolroom technicians, and CNC setup personnel are the primary installers of this component.

This lock screw is used in production and job-shop machining environments where indexable insert toolholders are standard equipment. It is suited for both manual and CNC turning centers, milling machines, and boring applications where WWLN toolholder style compatibility is required. The MWW4 clamp system is a specific listed compatible hardware application. This screw is sold individually but carries a minimum order quantity of 10 units, making it appropriate for toolroom stock replenishment or bulk maintenance kits.

Key Features

• T25 Torx drive provides positive engagement and reduces cam-out during tightening
• Socket head design allows recessed installation within the toolholder body
• M6 x 1 thread size is a standard metric pitch for indexable toolholder fastener systems
• Compatible with clamp and wedge clamping hardware types
• Specified for WWLN toolholder style compatibility
• Compatible with MWW4 clamp hardware

Compatibility

Designed for use with WWLN-style indexable toolholders and compatible with clamp and wedge hardware, including MWW4 clamp systems. This is an OEM-style replacement or service fastener for Kennametal indexable toolholder assemblies using M6 x 1 lock screws.

Installation Notes

Installation is performed by machinists or toolroom technicians as part of indexable insert changes or toolholder maintenance. Power down and de-energize the machine spindle before servicing any toolholder assembly. Use a calibrated T25 Torx driver or bit to seat the screw properly without stripping the drive. Do not reuse lock screws that show thread damage or deformation, as compromised fasteners can lead to insert movement during cutting.