Installation

IMPORTANT!
Do Not drill too deep, you may
damage the wall on the other side.
Step 2. Prep Trim Bore – On the Jamb (Cont.)
2.3) With a 2-1/8” hole saw, drill on Jamb side in accordance
with following steps.
TIP: Before drilling, cover area around the bore hole with masking
tape to prevent the drywall from chipping or cracking.
NOTE: In step 2.3, if 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.
IMPORTANT!
Do Not exceed depth of wood stud when
drilling. Minimum 1/4” or thicker wood
backing is required to support the lock.
With Casing 1-5/8” or wider:
a. Drill through casing and drywall
wood stud.
b. Continue drilling 1" deep into stud.
With Casing less than 1-5/8”:
a. Drill through casing and drywall
approximately 1" deep to locate
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:
a. Drill through drywall approx. 1/2” to
b. Continue drilling 1/2” into the stud.
For drywall openings protected with
steel corner beads, use metal hole saw
for cleaner and faster installation.
Step 3. Prep Lock Bore
Step 4. Installation of the Lock
3.1) 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.
A) For drywall and casing less than 1-5/8":
4.1) Insert bracket into trim bore
B. For moulded casing with uneven surface
4.2) Insert bracket into trim 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 atsame center
mark to drill hole to correct bore
hole depth.
3.2) Dry Wall or Flat Casing opening;
Use a 1" hole saw to cut lock bore
hole to depth as shown in chart.
Lock Part No. Lock Backset Bore Hole Depth
BD4214
BD4312
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.