Kennametal 1021463 Indexable Screw M6x1 3mm Hex Socket

Product Description

The KENNAMETAL 1021463 is a replacement clamping screw designed for indexable tooling assemblies. It features an M6x1 thread and a 3 mm hex socket drive, making it a direct-fit fastener for Kenloc-style toolholders. This screw secures the clamp that holds the cutting insert in place during machining operations. It is sized and threaded to maintain the precise clamping force needed to keep indexable inserts seated correctly under cutting loads. Machinists, toolroom technicians, and CNC setup personnel are the typical end users. Sold individually but subject to a minimum order quantity of 10 units per order.

This screw is used in metalcutting and metalworking environments where Kenloc-series toolholders are in service. It is compatible with the CKM21 clamp style and is engineered for use with MTEN-S toolholder configurations. The TN.. 160408 insert family is the confirmed compatible insert series for assemblies using this hardware. It is a common maintenance and spare-parts item kept on hand in production shops to minimize downtime when a clamp screw is lost, stripped, or damaged during an insert change.

Key Features

• M6x1 thread size for direct engagement with Kenloc toolholder bodies
• 3 mm hex socket drive for precise torque application with standard hex keys
• Designed for CKM21 clamp compatibility in indexable turning and milling setups
• Compatible with TN.. 160408 insert geometry series
• Lightweight at 0.011 pounds, minimizing added mass in the toolholder assembly
• Part of the Kenloc series hardware family for consistent spare-parts sourcing

Compatibility

Confirmed compatible with MTEN-S toolholder style, CKM21 clamp hardware, and TN.. 160408 series indexable inserts within the Kenloc system.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician with the machine fully stopped and in a safe, locked-out state. Use a calibrated hex key or torque driver sized for 3 mm hex drives to seat the screw without over-torquing the clamp. Inspect the thread engagement in the toolholder body before reinstalling; damaged threads in the holder can cause insert movement under load. Follow the toolholder manufacturer's torque specifications for the specific holder body being serviced.