Heli-Coil® True Engineering Innovation

There is a strong industry trend toward the lightweighting of materials, yet achieving structural integrity of bolted or fastened joints. Heli-Coil® by nature of its design is an ideal solution to be incorporated as part of these assemblies. The Heli-Coil® portfolio includes offerings of a variety of configurations whether it be plating, material, locking, or non-locking variants that make it fully adaptable and configurable for industries spanning automotive, industrial, aerospace, and defense.

Heli-Coil® Wire Threaded Inserts

Heli-Coil® Tangless Wire Inserts

Tangless® Screw Thread Inserts

Tangless® threaded inserts provide permanent, wear-resistant screw threads that completely eliminate the need for tang break-off and retrieval.


Heli-Coil® Tanged Wire Inserts

Heli-Coil® Tanged Screw Thread Inserts

Screw-Locking tanged screw thread inserts provide an exclusive, resilient internal locking thread that grips the bolt and prevents it from loosening under vibration or impact.


Heli-Coil® 8-pitch wire insert

Heli-Coil® 8-Pitch Screw Thread Inserts

Heli-Coil 8-Pitch inserts are a unique series of screw thread inserts designed for 8-pitch threaded holes.


Heli-Coil® Oversized Wire Insert Twinsert

Heli-Coil® Oversize & Twinsert® Screw Thread Inserts

Oversize inserts are primarily used to correct Heli-Coil insert assemblies that gage oversize due to tapping errors.


heli-coil packaged inserts multiple sizes

Heli-Coil®  Packaged Inserts

Heli-Coil® inserts are packaged according to thread size for easy handling and display.


Heli-Coil® Pipe Thread Inserts

Heli-Coil® Pipe Thread Inserts

Heli-Coil pipe thread inserts offer speed and economy in repair and production salvage, providing better than original threads.


Primer-Free Coated Inserts

Heli-Coil®  Primer-Free® II Coated Inserts

Primer-Free® inserts are designed for use in applications where galvanic corrosion between dissimilar metals is a concern.


Heli-Coil® Self-tapping Inserts

Heli-Coil®  Self-Tapping Screw Thread Inserts

The Heli-Coil self-tapping insert is a helically wound coil of carbon steel wire, precision-formed to a diamond-shaped cross section.


Heli-Coil® Spark Plug Inserts

Heli-Coil®  Spark Plug Screw Thread Inserts

Designed and manufactured to provide specific and unique benefits to high-temperature, high-performance spark plug applications.


Heli-Coil® Tools

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The availability of the products described on this site, and the product descriptions, may vary from country to country. Consult your STANLEY® Engineered Fastening Account Executive or your local distributor for specific product information.