Optional feature in hydraulic door closers slowing the opening swing of door somewhere between 60 and 85 degrees of opening. Designed to protect an object behind the door. Not intended to act as an overhead stop.
The horizontal distance from the lock front or edge of the door to the center line of knob hub, keyhole or cylinder. (Measured from the high side of a beveled door.)
Lock or latch whose parts are intended for installation in holes bored in a door.
A strike that also provides a strike box to protect the bolt openings.
A type of hinge designed for mortising into the edge of the door and into the rabbet of a door frame.