Heli-Coil® inserts are precision formed screw thread coils of stainless steel wire having a diamond shaped cross section.

When they are installed into Heli-Coil® tapped holes, they provide permanent conventional 60' internal screw threads that accommodate any standard bolt or screw.

All related tooling such as STI Taps, hand and power installation tools, gages and tang break-off tools are also available. Typical Applications would include: Automotive,Communication, Aerospace, Military and the Defense industries

Heli-Coil AeroSpace Brochure
Heli-Coil RoHS Statement
Heli-Coil DFARS Statement
Heli-Coil Definition Video

Heli-Coil is the approved Screw-Lock Screw Thread Insert source for Boeing Aircraft per specification BACI12AE Rev B.

Automotive Industries' readers pick Heli-Coil in the "Best of the Best" class among automotive suppliers, 3 years in a row.