1. The main body is large equipment, which needs to be installed with accessories, such as mirrors, mechanical seal seat, deceleration frame, etc. At this time, the stud is used, one end is screwed into the main body, and the other end is equipped with nuts after the accessories are installed. Since the accessories are often disassembled, the thread will be worn or damaged, so it is very convenient to replace the stud.
2. When the thickness of the connecting body is very large and the bolt length is very long, the stud bolt will be used.
3. It is used to connect thick plates and places that are inconvenient to be connected by hexagon bolts, such as concrete roof truss, roof beam hanging monorail beam hanging parts, etc.