Heli-coil A4184-6CNW090 Screw-locking Insert M6 X 1.00

Product Description

The HELI-COIL A4184-6CNW090 is a screw-locking helical wire thread insert designed to create strong, vibration-resistant internal threads in tapped holes. Made from Grade 304 stainless steel with a dry film lubricant finish, this insert accepts an M6 x 1.00 metric coarse thread and installs to a 1-1/2D length ratio, providing 9.00 mm of overall insert length. The locking function is achieved through a deformed coil section that applies consistent drag torque against the mating fastener, preventing loosening under vibration and thermal cycling. Machinists, maintenance technicians, and assembly professionals install these inserts to restore damaged threads or to reinforce threads in softer base materials.

This insert is suited for applications in industrial machinery, automotive assemblies, aerospace ground-support equipment, and general metalworking where M6 metric coarse threads must withstand vibration or repeated fastener cycling. The tanged design is compatible with standard HELI-COIL installation tooling. A minimum order quantity of 10 inserts applies, and each package contains 1 insert.

Key Features

• Grade 304 stainless steel construction resists corrosion in wet or chemically exposed environments
• Dry film lubricant finish aids installation and reduces galling during assembly
• Screw-locking design provides a maximum locking torque of 3.00 N/m and a minimum break-away torque of 0.40 N/m
• 1-1/2D length ratio with 9.00 mm overall insert length suits standard M6 thread-repair applications
• Tanged style for use with standard helical insert installation tools
• Outside diameter range of 7.40 mm minimum to 7.95 mm maximum for consistent fit in tapped holes

Compatibility

Designed for use in any tapped hole requiring an M6 x 1.00 metric coarse screw-locking threaded insert; compatible with standard HELI-COIL installation tooling for 1-1/2D inserts.

Installation Notes

Installation requires a properly sized HELI-COIL tap and a matching installation tool for M6 x 1.00 inserts. Ensure the base material hole is tapped to the correct HELI-COIL tap drill size before installing the insert. After installation, remove the tang using the appropriate tang break-off tool. Power down or de-energize any equipment before performing thread repair work on assemblies in service.