1. It is used in the main body of large equipment, which needs to install accessories, mechanical seal seat, reduction frame, etc. At this time, double-head screws are used, one end is screwed into the main body, and the other end is fitted with a nut after the attachment is installed. Since the attachment is often disassembled, the thread will be worn or damaged. It is very convenient to use the stud replacement.
2. When the thickness of the connecting body is very large, and the length of the bolt is very long, stud bolts will be used.
3. It is used to connect thick plates and places where it is inconvenient to use hexagonal bolts, such as concrete roof truss, roof beam suspension monorail beam suspension, etc.
