Threaded Inserts with Special Materials

Thread inserts are formed from high quality stainless steel wire with a diamond shaped cross section, wound to the shape of a spring thread. Once the wire is wound into a helical coil and installed into a tapped hole, it provides a permanent and wear resistant thread in the parent material that is generally stronger than the original thread. The thread 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 pull out and torque out strength. With a thread insert in place, load and stress are more evenly distributed over the assembly.

Thread inserts: Where to use?

Original equipment manufacturer

Thread insert offers innovative way for manufacturer to design and produce high quality products using lighter materials such as 
aluminium die casting and magnesium alloy parts. While can still achieve high strength and reliability in assembly.
It is widely used in manufacture of following industries: 
1. Aerospace and defense
2. Ship building industry, high speed train and other transportation
3. Automotive industry especially new energy automotive
4. Industrial and consumer electronics
5. High precision industrial parts
6. Aluminium die casting and magnesium alloy parts

Thread repairing
Thread insert is a ideal and simplest way for repairing stripped or damage threads.

Threaded inserts with special materials and coating

Threaded inserts are generally manufactured from Type 304 stainless steel (18-8), however inserts are available in a range of 
materials for special applications:
Stainless Steel Grade 304 (AS7245) Austenitic Corrosion Resistant Steel For normal applications up to 425°C (800°F)
Stainless Steel Grade 316 (AISI316) Austenitic Corrosion Resistant Steel For Marine applications up to 425°C (800°F)
Inconel X - 750 (AS7246) Nickel Alloy. For high temperature applications 425°C - 550°C (800°F - 1020°F)
or where low permeability is required.
Phosphor Bronze (DIN17677 or BS2783 PB 102) (300°C) For electrical bonding joints or low permeability
Nimonic 90 (HR 503) for high temperature applications. (650°C/1200°F)
Nitronic 60 (UNS S21800) Austenitic antigalling alloy