are widely used in modern life, so understanding the specifications of high strength bolts is very helpful for our selection and use. Next, let's take a detailed analysis of the specifications of high-strength bolts for your reference.
high-strength bolts refers to the size of high-strength bolts. According to the national standard GB/T1228-91, the specifications, models, and dimensions of high-strength bolts with thread sizes of M12~M30 can refer to this standard. Therefore, choosing the appropriate high-strength bolt specifications and models is crucial.
In the standard GB/T{{0}}, the torque coefficient of high-strength large hexagonal head bolt connection pairs with thread specifications M12~M30 is specified. Among them, the uniform value of the torque coefficient is 0.11~0.150, and the standard deviation is less than or equal to 0.010. 8.8S high-strength large hexagonal head bolt connection pairs can also be supplied with torque coefficient according to customer requirements.
In addition, the national standard GB/T3632-3633-1995 specifies the tightening axial force of high-strength bolt connections with torsion shear type. Among them, the thread specifications are M16~M24, and the uniform value of each batch of fastening axial force has a certain fluctuation range based on the nominal value, and the maximum and minimum values are also limited. At the same time, the standard deviation of the tightening axial force must also comply with regulations.
Therefore, when selecting and using high-strength bolts, we need to carefully check the specifications and relevant standards, and follow national regulations to use qualified products to ensure the effectiveness and safety of use.
In short, the specifications and standards of high-strength bolts are important reference for purchasing and using. We need to understand and master relevant knowledge, and choose carefully. At the same time, manufacturers should also strictly produce high-quality products in accordance with national standards, providing better service and quality assurance for users.
