A general bolt has a screw at one end and a nut at the other end, and the nut is tightened on the screw to fix the object.

Explosive bolts have no nuts, but a small amount of explosives in the front end of the screw rod. After inserting the bolt into the object, the explosives at the front end of the bolt are detonated to expand the front end of the bolt. The trouble of screwing is saved, and the fastening effect is better.

Therefore, the explosive bolt is equivalent to the role of the rivet, so when it is removed, because the explosive is gone, there is no danger, just use an electric grinding wheel to polish off the explosive head.
Explosive bolts are generally used on large permanent buildings and bridges