Techniks 41116 ER16 Hex Collet Locknut

Product Description

The TECHNIKS 41116 is an ER16 hex collet locknut designed to secure ER16 series collets within compatible toolholders. The hex profile allows standard wrench engagement for consistent clamping torque during setup and changeover. This locknut is a direct-replacement style component used in CNC machining, milling, and turning applications where ER16 collet chucks are standard. Machinists and tooling technicians install this part as part of routine collet maintenance or when replacing worn or damaged locknuts on ER16 toolholders.

The 41116 is suited for ER16 collet chuck assemblies found in CNC machining centers, manual milling machines, and high-speed spindle applications. It is appropriate for production shops, tool rooms, and maintenance environments where ER16 tooling is regularly cycled and locknuts experience wear over time. Installation requires no special equipment beyond a standard ER collet wrench.

Key Features

• Hex profile for positive wrench engagement during tightening and removal
• Compatible with ER16 collet series toolholders
• Sold individually, allowing single-unit replacement without buying in bulk
• Lightweight construction at 0.2 pounds for easy handling

Compatibility

Designed for use with ER16 series collet chucks and toolholders that accept standard ER16 locknuts.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician familiar with ER collet systems. Ensure the spindle or toolholder is fully stopped and de-energized before removing or installing the locknut. Use a proper ER collet wrench to achieve appropriate clamping engagement without over-torquing. Inspect the collet and toolholder threads for wear or damage before reinstalling.