Stud bolts generally require surface treatment. There are many types of bolt surface treatments. Generally, plating, blackening, oxidation, phosphating, and non-electrolytic zinc sheet coating are commonly used. However, electroplated fasteners occupy a large proportion in the actual use of fasteners. It is more widely used in industries and fields such as automobiles, tractors, home appliances, instrumentation, aerospace, and communications.
However, for threaded fasteners, not only a certain degree of corrosion resistance is required in use, but also the interchangeability of the threads must be ensured, which can also be referred to as the spinability. In order to meet the requirements of both anti-corrosion and interchangeability of thread fasteners in use at the same time, it is necessary to develop special plating standards.
1. It is used for large-scale equipment, and accessories need to be installed, such as sight glass and mechanical seal seat
Stud bolts, reduction racks, etc. At this time, a stud bolt is used, one end is screwed into the main body, and the other end is equipped with a nut after the attachment is installed. Since the attachment is often disassembled, the thread will be worn or damaged, and it will be very convenient to replace with the stud bolt.
2. It is used for connecting body with thick thickness and very long bolt length.
3. It is used to connect thick plates and places where hexagonal bolts are inconvenient, such as concrete roof trusses, roof beams, monorail beam suspensions, etc.