The wheel bolt is the high strength bolt which is connected with the wheel. The position of the wheel bolt connection is the wheel hub unit bearing. Generally, passenger car with the 10.9 grade and large and heavy vehicles with the 12.9 grade.The structure of the wheel bolt is generally a roller spline and thread with a cap.

The truck nut and bolt is for truck's wheel.They are more bigger than normal  wheel bolt and wheel nut.But it also used to fix and connect the teuck wheel.

Balance weight, also known as wheel balance weight, is part of vehicle mounted on the wheels.The role of the wheel balance weight is to decrease the quality gap between the wheels as far as possible, in order to achieve a relatively balanced state.