Heli-coil A4184-6CNW120 M6 X 1.00 Threaded Insert 304 Ss

Product Description

The HELI-COIL A4184-6CNW120 is a screw-locking helical wire threaded insert designed to create strong, vibration-resistant threads in tapped holes. Manufactured from Grade 304 stainless steel with a dry film lubricant finish, this insert accepts M6 x 1.00 metric coarse fasteners and provides reliable thread locking without the need for adhesives or separate locking devices. The tangless design eliminates the tang-removal step required with traditional coil inserts, reducing installation time and preventing debris from remaining in blind holes. With an overall length of 12 mm and a 2D length-to-diameter ratio, it is suited for applications requiring a controlled locking torque. Machinists, maintenance technicians, and assembly professionals install this type of insert in production and repair environments.

This insert is used in metalworking, industrial assembly, and maintenance-repair-overhaul applications where stripped or damaged threads need reliable restoration, or where original designs call for a locking threaded insert. The M6 x 1.00 metric coarse thread specification makes it common in machinery, equipment panels, and structural assemblies. The 304 stainless steel construction suits environments with moderate corrosion exposure. The dry film lubricant coating aids consistent installation torque and reduces galling during drive-in.

Key Features

• Tangless design eliminates tang removal and prevents debris in blind holes
• Grade 304 stainless steel construction for corrosion resistance
• Dry film lubricant finish promotes consistent installation and prevents galling
• Screw-locking design provides vibration-resistant thread retention without adhesives
• Maximum locking torque of 3.00 N/m with minimum breakaway torque of 0.40 N/m
• 9-1/2 free coils with outside diameter range of 7.40 to 7.95 mm

Compatibility

Designed for use in tapped holes requiring M6 x 1.00 metric coarse internal threads, compatible with standard HELI-COIL installation tooling for tangless inserts.

Installation Notes

Installation requires a properly tapped hole prepared with an appropriate STI (Screw Thread Insert) tap sized for M6 x 1.00 metric coarse inserts. Use a tangless insert installation tool to drive the insert to the correct depth. Power down or de-energize any equipment before servicing threaded connections in live assemblies. Do not reuse a removed screw-locking insert, as the locking feature may be compromised after extraction.