The main functions of Hub bolt include fixing hub, supporting tire, buffering external impact, transferring body weight, bearing lateral load, driving force and braking force torque when turning, so as to ensure vehicle performance ‌‌12.

Hub bolt fix the wheel on the hub through the combination of nuts and washers to ensure the stability and safety of the wheel during the driving process. In addition, the hub bolts also bear the torque transmission from the gearbox, and are subjected to the double action of tensile and shear forces at work ‌