See: Yokomo

Yokomo have introduced a set of machined titanium screws for their RP (Racing Performer) brushless motors. Precision machined from high-quality titanium, the set consists of six M2.5x8mm titanium screws for the motor cap and three M2.5 x 44.5mm titanium screws to fix the motor back plate. Using titanium swrews allows to reduce the weight of the motor and also provide more efficiency at the high performance motors.