Heli-coil A4184-10CN100 Thread Insert M10 X 1.50 1D Ss

Product Description

The HELI-COIL A4184-10CN100 is a tangless screw-locking wire thread insert designed to create or restore durable threaded connections in parent materials subject to vibration and dynamic loading. Manufactured from Grade 304 stainless steel with a bright finish, this coiled insert provides corrosion resistance and reliable locking torque without the need for tang removal after installation. The 1D length-to-diameter ratio and M10 x 1.50 metric coarse thread profile make it suited for precision fastening applications where thread integrity is critical. Machinists, maintenance technicians, and assembly professionals install this type of insert using a dedicated HELI-COIL installation tool.

This insert is used in applications requiring a hardened, wear-resistant internal thread in softer base materials such as aluminum, magnesium, cast iron, or plastic. The tangless design eliminates the tang-break step common in standard coil inserts, reducing installation time and the risk of loose tang fragments in assemblies. Typical use cases include engine components, transmission housings, structural brackets, and industrial equipment where thread stripping or wear is a known failure mode. The single-insert package suits field repair and low-volume assembly work.

Key Features

• Tangless design eliminates post-installation tang removal and reduces foreign object debris risk
• Grade 304 stainless steel construction provides corrosion resistance in demanding environments
• M10 x 1.50 metric coarse thread profile with 1D length-to-diameter ratio
• Maximum locking torque of 10.00 Newton-meters and minimum breakaway torque of 1.4 Newton-meters
• Bright finish with outside diameter range of 11.95 to 12.50 millimeters for consistent installation fit
• 4-7/8 free coils provide uniform thread engagement and load distribution

Compatibility

Designed as an OEM-style screw-locking thread insert for M10 x 1.50 metric coarse threaded bores prepared with the appropriate HELI-COIL tap and installation tooling for 1D inserts.

Installation Notes

Installation requires a correctly sized HELI-COIL STI tap to prepare the parent bore, followed by a compatible tangless installation tool matched to the M10 x 1.50 thread size. Power down or de-energize any equipment before beginning thread repair work on live assemblies. The tangless design does not require a tang-break step, but verify the insert is fully seated flush with or below the parent material surface before completing assembly. Follow the equipment manufacturer service manual and any applicable torque specifications for the fastener being installed into the insert.