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The HELI-COIL 1084-16CN160 is a free running helical wire threaded insert designed to create strong, wear-resistant internal threads in parent materials that are soft, damaged, or prone to thread stripping. The insert is manufactured from 304 stainless steel with a bright, uncoated finish, providing corrosion resistance in demanding environments. At 16mm overall length and an M16 x 2 metric coarse thread profile, this insert is built to a 1D length-to-diameter ratio and features 6-1/8 free coils. It uses a tanged design for installation tool engagement and is suitable for use in production assembly and field repair applications.
This insert is used in applications requiring reliable thread reinforcement or thread repair in metals, plastics, and composite materials. It is commonly installed in automotive, industrial equipment, and heavy machinery applications where M16 metric coarse threads are specified. The bright stainless steel construction makes it a practical choice in applications subject to moisture exposure or mild corrosive conditions. This SKU contains one insert per package, with a minimum order quantity of five pieces.
Designed as an OEM-style replacement or thread repair insert for tapped holes with an M16 x 2 metric coarse thread specification. Consult the HELI-COIL installation tool and tap drill chart to confirm correct drill and tap sizing for the parent material before installation.
Installation is performed using a HELI-COIL compatible installation tool matched to the M16 thread size. The parent material must be drilled and tapped with the correct HELI-COIL oversize tap before the insert is wound in. Once the insert is seated flush to one thread below the surface, the tang is broken off using a tang break-off tool. Always follow applicable industry standards and the manufacturer installation guide for proper insert depth and tool engagement.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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