a lock designed to be installed into a cutout in the edge of a door.
The lock body and most or all of its trim need no further assembly other
than securing it to the door.
definition pretty well describes the preassembled lockset.
are typically only found in commercial hardware applications and the retail
price can be anywhere from $400 to $1200. They are worth it though as they
will likely outlast any frame building they are installed in and very unlikely
to malfunction. They are typically available with a knob or a lever
effect they form a sandwich with the door in the middle. It was designed
to strengthen a door as part of the installation. If disassembled, they
can be hard to reassemble correctly and it is suggested that they should only be
serviced by a professional locksmith.
Copyright © 2012, Thelockman LLC. ALL rights reserved