Grade 5.8 M8 Thread HDG U Type Bolt

Product Description

Horseback bolt is called U-bolt in English. It is a non-standard part with the shape of U-bolt, so it is also called U-bolt. The two ends have threads which can be combined with nuts. It is mainly used to fix tubular objects such as water pipes or sheet objects such as leaf springs of automobiles. Because the way of fixing objects is the same as that of people riding on horses, it is called horseback bolt. According to the length of thread, it can be divided into full thread and non full thread.

According to the manufacturing accuracy, ordinary bolts can be divided into three grades A, B and C. grade A and B are refined bolts and grade C is rough bolts. As for the connecting bolts for steel structure, unless otherwise specified, they are generally ordinary rough grade C bolts. There are differences in different levels of processing methods. Generally, the corresponding processing methods are as follows: ① the bolt bars of Grade A and B bolts are processed by lathe, with smooth surface and accurate size, and their material performance grade is 8.8, which is complex in fabrication and installation, high in price and rarely used; ② the grade C bolts are made of raw round steel, with inaccurate size, and their material performance grade is 4.6 or 4.8. Shear connection has large deformation, but it is easy to install, low production cost, and it is mostly used for tension connection or temporary fixation during installation.