Expansion Bolts are special threaded connections used to fasten pipe supports, hangers, supports, or equipment to walls, floors, and posts.
The expansion bolt comprises a countersunk head bolt, an expansion pipe, a flat washer, a spring gasket and a hexagon nut.
When in use, the impact drill (hammer) is used to drill a hole of corresponding size on the fixed body, and then the bolt and the expansion pipe are inserted into the hole.