Small titanium screws m2, m3, m4 are widely used in aerospace and automobile industries due to their unique physical and chemical properties.

1. Engine Components: Small titanium screws are used in engine components of both aircraft and automobiles as they have excellent heat resistance and high strength-to-weight ratio. They are used in turbines, exhaust systems, and other high-heat areas where the metal needs to withstand high temperatures.

2. Fasteners: Small titanium screws are used as fasteners in aerospace and automobile industries. They are lightweight and have high tensile strength, making them ideal for holding together important parts of an aircraft or automobile.

3. Structural Components: Titanium screws can also be used in structural components such as wings, fuselage, landing gears, and other parts of an aircraft or automobile due to their high strength, low density, and corrosion resistance.

4. Medical Equipment: Small titanium screws are also used in the manufacture of medical equipment such as implants, orthopedic devices, and surgical tools, as titanium is biocompatible and does not react with body tissues.

The use of small titanium screws in aerospace and automobile industries is increasing as they offer high strength, light weight, and corrosion resistance, leading to better performance and durability of the machines.