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Hinges:
Hinges
are
the
metal
objects
that
attach
your
door
to
the
jamb,
normally
with
screws.
They
can
be
made
from
brass,
steel,
iron
or
other
products.
Jamb:
The
wood
that
surrounds
the
door,
and
which
the
hinges
are
attached
to
on
one
side,
and
which
the
latch
goes
into
on
the
other
side
of
the
door.
Keyways:
The
part
of
the
lock
mechanism
where
the
key
is
inserted.
Can
be
changed
if
needed
for
security
reasons,
or
changed
also
if
wanted
for
ease
of
use,
where
more
than
one
lock
is
in
existence,
and
you
want
all
the
locks
to
take
the
same
key.
Knobs:
Round
part
of
door
handle
that
you
hold
with
your
hand.
This
can
be
made
of
brass,
porcelain,
steel,
glass
or
other
products.
Latch:
The
latch
is
the
part
of
the
door
hardware
that
moves
with
the
turn
of
a
knob
or
lever.
It
slides
into
the
latch
plate
attached
to
the
door
jamb,
and
holds
the
door
shut
or
opens
it.
Left
Hand:
Used
to
describe
which
way
the
door
is
hung
on
the
jamb.
Left
Hand
describes
the
side
of
a
door
the
handle
is
on
as
it
is
pulled
towards
you.
As
a
door
is
pushed
away,
this
would
describe
a
handle
on
the
opposite
side
of
the
door.
(left
hand
diagram)
Lever:
A
lever
has
the
same
function
as
a
knob,
except
it
is
longer
and
thinner.
To
open
a
door,
levers
are
pushed
down.
Besides
the
decorative
uses
of
a
lever,
they
are
also
used
in
applications
where
someone
is
handicapped,
and
can
not
grasp
a
knob
very
well.
Non-Rising-Pin
(NRP):
A
pin
inserted
into
a
hinge
that
cannot
be
removed.
Used
mainly
where
security
is
needed,
so
that
the
pin
cannot
be
removed,
and
door
removed
from
opening.
On
exterior
doors
which
open
outward,
the
pin
is
on
the
outside
of
the
building.
In
this
case,
these
pins
may
be
used
more
often.
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