Head shape: The head is hexagonal, which is convenient for tightening with an hexagonal wrench. The hexagonal wrench fits tightly with the head, can effectively apply torque even when space is limited, and can accurately control the degree of tightening. At the same time, the shape of the hexagonal wrench is relatively regular, and it is not easy for the wrench to slip during installation, ensuring the safety of operation.

Semi-threaded design: The rod of the bolt is partially threaded and partially bare. The semi-threaded design has many advantages. On the one hand, the bare rod can play a positioning role during installation, and can more accurately insert the bolt into the corresponding hole to ensure the accuracy of the connection. On the other hand, when one of the two connected parts needs to be tightly threaded and the other only needs simple positioning or a small tightening force, the semi-threaded design can meet this demand well. For example, in the panel installation of some equipment, one side of the panel needs to be firmly fixed by threads, while the other side only needs to be positioned.