An expansion bolt consists of bolts, nuts, and sleeves. Sleeve expands when the bolt is tightened. They are similar to the nail-in anchor but is able to handle much heavier duty use as a podium and stadium seating.
There are multiple different types of expansion bolts provided. The definition of an engineering point of view the machine is as follows: expansion ‘U Bolts’(Also known as ‘ สลักเกลียว U’ in the Thai language) and nuts configuration expands when tightened into the hole.
The first is a bolt, nut combination arm lead, and taper. Nuts in the arms of the lead and everything is inserted into a hole drilled into the material that needs to be tied up.
Expansion bolts assessed on the tonnage they can handle. They should be chosen according to what use they will be punished and what kind of stress they are under, and the type of corrosion can be expected.
One of the more common uses that can be seen and understood by almost anyone, is in the protection of a hiking trail in the cliffs and mountains. Expansion bolts are put in places that are likely to have an accident occurs to provide an anchor for the climbers to attach.
Thus, the expansion bolts that are not complicated. They are basically a bolt in the sleeve that expands when the bolt is tightened. Expansion create a safer bolt in the hole.