A doorstop (also door stopper or door stop) is an object or device used to hold a door open or closed, or to prevent a door from opening too widely. Alternatively, a doorstop can be a thin slat built inside a door frame to prevent a door from swinging through when closed.
Stops the door from swinging open and damaging buildings with a Heavy Duty Spring Chain. Specially designed for full-size exterior doors. Tear resistant, grey vinyl cover for protection against the elements.
A Flush bolt is a bolt mounted inside the door to lock a door in place. These bolts slide up into the jamb above the door and down into the threshold or floor below the door. They are primarily used on double doors where one door is locked in place and the other door is the one mainly used (active door). When needed the door locked in place with the flush bolts can be opened.