Heli-coil 1084-6CN120S Free Running Insert M6x1 12mm Ss

Product Description

The HELI-COIL 1084-6CN120S is a tanged, free-running wire thread insert designed to repair or reinforce internal threads in metal components. Manufactured from 304 stainless steel, it installs into a pre-tapped Heli-Coil hole to create a durable, corrosion-resistant thread form that meets or exceeds the strength of the parent material. The insert carries a Metric Coarse M6 x 1.00 thread specification and measures 12.0 mm (0.4724 inches) in overall length, representing a 2D length-to-diameter ratio. Maintenance technicians, machinists, and field service professionals install these inserts using a Heli-Coil driver tool after drilling and tapping the host bore to the correct oversize diameter.

This insert is suited for thread repair and thread reinforcement applications in automotive, industrial, and mechanical maintenance environments. The tanged design allows precise installation with a standard Heli-Coil insertion tool; the tang is broken off after installation. With 9-1/2 free coils, the insert provides full thread engagement across the 12.0 mm insert length. This package contains 500 inserts, making it appropriate for production environments or high-volume repair operations where consistent thread repair is required.

Key Features

• M6 x 1.00 Metric Coarse thread size for standard metric fastener compatibility
• 12.0 mm overall insert length with a 2D length-to-diameter ratio for full thread engagement
• 304 stainless steel construction for corrosion resistance and durability
• Tanged design for controlled installation with a Heli-Coil driver tool
• 9-1/2 free coils provide consistent load distribution across the thread form
• Package quantity of 500 inserts supports production and high-volume repair use

Compatibility

Designed for use in standard Heli-Coil M6 x 1.00 tapped holes prepared with the corresponding Heli-Coil drill and tap kit for Metric Coarse thread series applications.

Installation Notes

Installation requires drilling the damaged or new bore to the correct Heli-Coil oversize diameter, tapping with the appropriate M6 Heli-Coil tap, and driving the insert flush using a Heli-Coil insertion tool. Power down and de-energize any associated equipment before performing thread repair on live assemblies. After the insert is seated, break off the installation tang using a tang break-off tool or needle-nose pliers directed downward into the bore. Follow the host material manufacturer guidelines and applicable shop standards for thread repair procedures.