A door latch is a fastening, as
for a door or gate, typically consisting of a bar that fits into a notch
or slot and is lifted from either side by a lever or string. It is
typically a door fastening consisting of a pivoted bar, which crosses
the joint of the door to engage with the strike on the jamb, the free
end of the bar being raised to disengage it from the strike on the jamb,
by a transverse pivoted bar passing through the door. Typically, latches
do not lock; however there are some latches available with a
key-locking mechanism or can be secured with a padlock.
Door latches, made of different materials, are available in many sizes.
They are made of cast iron, brass and aluminum.
Types of Door Latches
