IMPORTANT!
Do
n
ot drill too deep, you may
damage the wall on the other side.
Step 2. Prep Trim Bore – On the Jamb (CONT.)
With a 2-1/8” hole saw, drill on Jamb side in accordance
with following steps.
NOTE:
I
n
S
tep 2.3, i
f there is a gap
between the drywall and the stud,
measure the
distance and add to
the
bore hole depth. Hole depth must
accommodate
lock barrel preparation
in Step 4. You can deepen trim bore
as needed
after that step.
With Casing
less than 1-5/8”
:
a. Drill through casing and drywall
approximately 1" deep to locate
the first wood stud.
b. Continue drilling 1-3/4" deep into
the stud. This will give you a 2-1/4"
deep bore to accommodate the
lock installed next to casing.
Without Casing:
IMPORTANT!
Do
n
ot exceed depth of wood stud when
drilling. Minimum 1/4” or thicker wood
backing is required to support the lock.
For drywall openings protected with
steel corner beads, use metal hole saw
for cleaner and faster installation.
Step 3. Prep Lock Bore
3.3) For moulded casing with an uneven surface:
At pilot center mark, use 1-1/4" hole
saw to drill to a depth of 3/8"
Then, use 1" hole saw at same center
mark to drill hole to correct bore hole
depth.
Double check lock bore distance from
Step 1. Refer to template markings to
ensure both lock and strike pilot holes
are within door overlap requirements.
Keep 3/8" safety margin to edges.
For d
ry
w
all or
f
lat
c
asing opening
s
,
u
se a 1" hole saw to cut lock bore
hole to depth as shown in chart.
Lock Part No.
Backset
Bore Hole Depth
9458-2D
9458-35
2-1/4”
3-1/2”
3-1/4”
4-1/2”
Note: Hole Saw for metal should be used for drywall with steel corner bead.
Step 4. Installation of the Lock
A
) F
or drywall
and casing
less than
1-5/8":
4.1) Insert bracket into trim bore
4.2) Insert lock bolt into lock bore and
fi
t into bracket slot.
B
)
For moulded casing with uneven surface
:
4.1) Insert 1/4" spacer provided with lock into the 1-1/4" recess
fi
rst
4.2) Insert bracket into trim bore
4.3) Insert lock bolt and spacer into lock bore and
fi
t into bracket slot.
2.3)
Drill through drywall approx. 1/2”
to locate first wood stud.
Continue drilling 1” into the stud.
a.
b.
With Casing
1-5/8” or wider
:
a.
Drill through casing and drywall
approximately
1" to locate the first
wood stud.
b.
Continue drilling 1" deep into stud.
3.1)
3.2)
-
-
TIP:
Before drilling, cover area around the bore hole with masking
tape to prevent the drywall from chipping or cracking.
