Heli-coil A4184-6CN120 Threaded Insert M6 X 1.00 304 Ss

Product Description

The HELI-COIL A4184-6CN120 is a screw-locking helical wire insert designed to create strong, vibration-resistant threads in tapped holes. Manufactured from Grade 304 stainless steel with a bright finish, it accepts M6 x 1.00 metric coarse threading and features a tangless design that eliminates the need for tang removal after installation. The 2D length designation means the insert body is 12 millimeters long, providing a thread engagement depth equal to twice the bolt diameter. This insert is installed by machinists, maintenance technicians, and assembly professionals working in corrosion-sensitive applications where thread repair or thread reinforcement is required.

This insert is suited for use in metal, aluminum, and composite assemblies where metric coarse M6 threads must be installed or restored. The tangless configuration makes it compatible with standard tangless installation tooling and simplifies installation in blind holes where tang removal is impractical. Typical applications include industrial machinery, structural assemblies, and equipment subject to cyclic loading or vibration where thread pullout resistance is critical. The 304 stainless steel construction makes it appropriate for environments with moderate corrosion exposure.

Key Features

• Tangless design eliminates post-installation tang removal, reducing assembly steps
• Grade 304 stainless steel construction provides corrosion resistance in demanding environments
• M6 x 1.00 metric coarse thread accepts standard M6 fasteners
• 2D length (12 millimeters overall) provides full thread engagement depth
• Maximum locking torque of 3.00 N/m resists loosening under vibration
• Minimum break-away torque of 0.40 N/m ensures controlled removal when needed

Compatibility

Designed for use with M6 x 1.00 metric coarse tapped holes prepared to HELI-COIL specified dimensions for 2D tangless inserts. Requires compatible tangless installation tooling sized for M6 inserts.

Installation Notes

Installation requires a properly sized HELI-COIL tang-free installation tool matched to M6 x 1.00 inserts. The parent material hole must be drilled and tapped to the manufacturer-specified oversize tap dimensions before insert installation. Power down all equipment and secure the workpiece before beginning thread repair or insert installation. Do not attempt to install using standard tanged insert tools, as this can damage the insert coils or the parent thread.