Throughout their lifetime, fasteners are affected from vibrations. Thus, bolted joints have gradual loosening which causes security problems. In this thesis, improving the loosening situation of bolts under transverse vibration is studied by designing new bolt thread forms which have high vibration resistance. In the first step, the possible thread forms are drawn in 2-D and 3-D by considering the elastic contact. Secondly, static finite element simulations in contact regions are performed for different thread forms designed in the first step. After finding the thread forms within the gap tolerances between bolt and nut threads, thread rolling tools are designed and manufactured to verify them experimentally. Finally, numerous tests on transverse vibration and torque-tension are conducted to test the performance of the new thread forms.