Blind Bolts create a fastening from one side through pre-drilled holes without having to access the other side to complete the lock. They can be used to help create structures like bridges and buildings through steel to steel connections in girders, plates, and hollow box section, for example. They can be installed and removed quickly and easily - ideal for maintenance and repairs. They are available with a Geomet 500B finish, which is incredibly resistant to corrosion, and A4 stainless steel. We also offer a heavy-duty version, and a thin wall design, too.