bolts and screws made by Carbon-carbon composite material
1. strengthen
2. high temperature

    Carbon-carbon composite material made of the bolt, screw: graphite in strength bolts (under) more than 10 times. Composite fiber-reinforced materials in the most widely, the largest amount. It features a small proportion than the strength and modulus than large. For example, carbon fiber and epoxy composite material, its strength and modulus than steel and aluminum alloy in both major several times, but also have excellent chemical stability, anti-friction wear-resistant, self-lubricating, heat, fatigue resistance, resistance Creep, muffler, electric insulating properties, and so on. Graphite fibers and resin composite can be almost zero expansion coefficient of the material. Another fiber-reinforced material is characterized by anisotropic, so parts can be in different parts of the design strength of the fiber array.

      •Carbon fiber and silicon carbide fiber-reinforced composites of aluminum, 500 °C in maintaining sufficient strength and modulus. Silicon carbide fiber composites and titanium, will not only increase the heat resistance of titanium and wear-resistant, can be used as the engine fan blades. Silicon carbide fiber composites and ceramics, the use of temperature up to 1500 °C, super-alloy turbine blades than the use of temperature (1100 °C) is much higher. Carbon fiber reinforced carbon, graphite fiber-reinforced carbon fiber-reinforced graphite or graphite, constitute a material ablation has been used for spacecraft, missiles and rocket atomic energy reactors. Non-metallic matrix composites because of the density of small, to reduce the weight of cars and aircraft, improve the speed and energy. Using carbon fiber and glass fiber composite material made of mixed spring film, its stiffness and weight of large carrying capacity and 5 times the number of spring steel considerable.