The main application range of expansion bolts

Expansion bolts are connectors used in construction projects as follows:

It fixes pipeline supports, equipment, hangers, etc. to walls, floors, columns, etc. The reason why expansion bolts can achieve their connection function is due to their unique principle. The structure of expansion bolts
is mainly composed of bolts and metal sleeves. The bolt is a cylinder with external threads, while the metal sleeve is cylindrical in shape with a cone facing upward. Its function is to fix the bolt in the hole so that the expansion bolt can bear the load. The installation of expansion bolts is very simple. First, put the bolt into the pre-drilled hole. Then install the nut at the connection between the bolt and the steel structure, and tighten it to the required torque with a hand wrench to keep the bolt in a tightened state. At this time, the bolt begins to expand and fit the metal sleeve in the hole. When the nut is tightened, the expansion bolt will expand the metal sleeve to the same size as the hole, thereby achieving a tight connection between the bolt and the hole.
The expression of expansion bolt specifications is slightly different from that of traditional bolt specifications. Usually, the specification is described as “bolt diameter × length × installation hole diameter range”. This specification code describes the diameter, length and hole diameter of the bolt to ensure the correct selection and installation of the bolt.
Expansion bolts come in a variety of sizes, large and small. These sizes are related to the application, so when selecting expansion bolts, the weight and load to be fixed must be considered. Only in this way can we ensure that the expansion bolts are selected correctly, installed correctly, and can withstand the expected load.
In short, expansion bolts are extremely common connectors in construction projects, which are easy to use and highly reliable. When selecting and installing, expansion bolts of appropriate specifications and sizes must be selected according to actual conditions and requirements to ensure the safety and reliability of fixation.