Metric Free Running wire threaded inserts for metal

The wire thread insert is made of high-quality austenitic stainless steel material. It forms a reliable internal thread after installation and embedding. It can significantly improve the strength and safety of low-strength engineering materials such as aluminum, magnesium, copper alloy, plastic, plexiglass, and bakelite. Wear resistance; applied to steel parts, cast steel, and cast iron, it can improve the durability of screws, prevent screws from loosening and falling off, fatigue fracture due to various vibrations, and improve the fatigue resistance of screws during connection. The advantages of wire thread inserts are: high wear resistance and tensile strength, low thread friction, high surface quality, and excellent anti-corrosion and heat resistance.

For steel wire threaded inserts made of 304 stainless steel, the surface treatments available are：

1. No treatment, natural surface
2. Environmentally friendly colour plating, according to customer needs can be plated in purple, green, blue, red. In industries where large quantities of threaded inserts are required, colour plated wire threaded inserts help to identify whether they are installed or not. The different colors of the wire threaded inserts are also very convenient for visual management.
3. Cadmium plating, cadmium (cd) plated steel wire threaded inserts corrosion resistance, lubrication, wear resistance, electrical conductivity, electromagnetic properties, heat resistance is stronger.
4. Silver-plated, silver-plated steel threaded bushings can be installed in a variety of shell materials, including magnesium alloys, aluminium alloys and corrosion and heat-resistant materials, mainly used to reduce the screw threads in the high-temperature state of the bonding effect.
5. Tin-plated, tin-plated steel wire threads inserts have the biggest advantage of better corrosion resistance, for corrosion resistance has high requirements, you can consider tin-plated coating of steel wire threads.
6. Dry film lubrication for mild corrosion or high temperature environment.

Wear and Tear Stability

AVlC-Flight thread inserts are manufactured from austenitic chrome-nickel-steel (tensile strength of a minimum 1400 N/mm2).The formed thread provides a high surface quality. This guarantees a heavy-duty, wear and tear resistant thread with an extremely low constant thread friction force.This allows for a constant pre-stressing being achieved with the identical tightening torque upon repeated re-screwing. This leads simultaneously to a better utilisation of the yield point for high strength screws. The torsion stress is noticeably reduced hereby: In comparison with cut threads, the surface roughness depth is up to90% lower with AVlC-Flight thread inserts.

The flexible characteristics of the AVlC-Flight thread inserts provide an even loading and tension distribution and with that, a perfect thread pitch angle. Pitch and angle defects are balanced out over the entire length of the thread insert. Therefore an ideal force transfer is achieved between the bolt and the nut thread. The durability of the thread connection is significantly increased. This applies to both static and dynamic work loads.Use a shank removal tool to break off the tang of the installed wire threaded insert.

The material properties of the Avic-Flight thread inserts ensure that locking and tight gripping of screw sunder normal environmental conditions does not occur. AVlC-Flight thread inserts made from nickel based materials (INCONEL and NIMONIC 90) are available for thermal high stressed thread connections,with or without any coating. Elasticity and springiness is preserved even under high temperatures.

AVlC-Flight thread inserts from high-strength hard coated aluminium has been specially developed for utilisation with materials liable to high corrosion such as magnesium. Contact corrosion is hereby ruled out.

AVlC-Flight thread inserts allow a wide range for the designer in the choice of materials and material thickness. The actual trend towards light weight design (for example from magnesium) is fulfilled by AVlC-Flight thread inserts with highest loading capacity by means of thread reinforcement with its simultaneous low area requirement. Due to fewer connection points and a reduction in screw sizes,the saving of materials, size and weight with the same or higher requirements AVIC-Flight thread inserts leads to a substantial reduction in costs.