Formerly Emhart Teknologies & Infastech

Screw Thread Inserts

Heli-Coil inserts are precision-formed screw thread coils of extremely hard diamond-shaped 304 stainless steel wire. When installed into Heli-Coil tapped holes, screw thread inserts 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 include automotive, communication, aerospace, and military. 


Designs available to meet any threaded fastening need.

Materials, Coatings & Platings

Special alloys and finishes optimize insert performance.

Design Guidelines

Find a soultion for any threaded fastener application.

Standards & Specs
Standards & Specifications

Conform to industrial and aerospace standards.

Cross Reference
Cross-Reference Guides

Easily move between industry and part numbers.

Tech Talk
Tech Talk

Hear what the experts have to say.