Wire Thread Inserts  Manufacturers, Traders, Suppliers

Wire thread inserts are helically coiled fastening devices that provide permanent, wear-resistant screw threads that exceed the strength of most parent material; the inserts are designed to protect tapped holes against failures due to stripping, seizing, corrosion, and wear.

Threaded inserts are typically used when the object in which a threaded fastener is being installed is made of a soft material. ... A simple solution is to use a threaded insert. The threaded insert is placed inside the object, after which the threaded fastener is driven into the insert.

wire thread inserts can be used to strengthen threads, giving applications a longer life. They are rolled from high quality stainless steel wire and cold-drawn into a diamond shaped cross section, formed to the shape of a spring thread. Once the wire is formed into a helical coil insert and installed into a tapped hole, it provides a permanent and wear resistant thread in the parent material that is stronger than the original thread.
The inserts are designed to be greater in diameter than the tapped hole and compress as they are installed. This allows maximum surface contact area with the tapped thread, safely and permanently anchoring the inserts into place. The insert’s compensatory action shares the load over the entire bolt and hole, increasing holding or pull out strength. With a Recoil insert in place, load and stress are more evenly distributed.
Standard inserts are free-running, but screw-locking inserts are also available. Both free-running and screw-locking inserts are available on plastic strips for automated tooling systems.