The b&m-CARBONPLAST® is designed for the direct screwing of carbon fiber reinforced plastics. By using a special steel for the production of the screw, it is possible to make direct contact with the carbon fiber without a corrosive reaction. Moreover, the thread tips are resistant to the abrasive wear of the fibers. The thread geometry has also been adapted for this specific application in order to promote the flow of material and to avoid radial stresses which can lead to delamination effects.