ASME B 18.31.2 - 2014 Continuous Thread Stud（A193 / A320 / A437 / A453/A540/A1014）
In practice, A193 B7 threaded rod is mostly used for connection, and the thickness of one of the connected parts is relatively large, so it is necessary to use a compact structure or it is not suitable to use a fastener for connection due to frequent disassembly. Moreover, the stud can usually be divided into two ends with threads or one end with threads. Of course, when using, you usually want to screw one end of the thread firmly into the body of the component, and the other end is matched with the nut, which not only can play the role of connection and fastening, but to a large extent it also has the role of distance.
In the process of use, A193 B7 all thread bolts will be used more frequently with 35CrMo/30CrMo stud nuts. Therefore, many people in the industry know that in order to meet the standard, many times the pure design of ASTM A193 B7 threaded rod does not consider the material price. That is to say, relatively speaking, the price of A193 B7 threaded rod will be higher.