General Information		Other Door Fastening Devices		Architectural Door Trim
	Types of Locks		Spring Hinges or Pivots		Power Operated Pedestrian Doors
	Door Closers		Hinges		Exit Devices

Chain Door Guard. A connectable device used to limit the extent to which a door can be opened.

Door Bolt or Fastener. A mechanical device operable from one side of the door and used to fasten the door in a closed position.

Roller Latch. A mechanical device used to fasten a door by means of a rolling plunger which engages a socket or catch. These have become somewhat obsolete where selfclosing or automatic closing is used due to the resistance a roller latch provides against complete door closing. They are not permitted in health care facilities under some codes.