This architectural drawing is a Door latch in the middle design in AutoCAD 2D drawing, CAD file, dwg file. A form of mechanical hardware called a door latch is used to secure and maintain the closure of doors. A door latch prevents the door from swinging while still enabling regular operation when the latch is released. It does this by using a fastener attached to two normally separated surfaces, most frequently the door and the frame. For more details and information download the drawing file. Thank you for visiting our website cadbull.com.