Hot dip galvanized stud

Double head stud, also known as double head screw or double head stud. It is used to connect the fixed link function of machinery. There are threads at both ends of the stud bolt, and the screw in the middle is thick and thin. It is generally used in mining machinery, bridges, automobiles, motorcycles, boiler steel structures, hanging towers, long-span steel structures and large buildings. A bolt, especially a screw with a larger diameter, can also have no head, such as a stud. Generally, it is not called "stud" but "stud". The most common form of double headed stud is threaded at both ends and polished rod in the middle. The most typical use: anchor bolts, or places similar to anchor bolts, thicker connections, when ordinary bolts cannot be used. [1] Thread specification d = M12, nominal length L = 80mm, performance grade 4.8 equal length stud, complete mark: GB 901 M12 × 80-4.8。 1. It is used in large-scale equipment and needs to install accessories, such as mirror, mechanical seal seat, reducer frame, 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 installing the accessories. Because the accessories are often disassembled, the threads will be worn or damaged, so it is very convenient to replace the stud bolt. 2. When the thickness of the connector is very large and the bolt length is very long, stud bolts will be used. 3. It is used to connect thick plates and places inconvenient to use hexagon bolts, such as concrete roof truss, roof beam suspension, monorail beam suspension, etc.