FAX version 911374_00(2) Page 3 of 9
PREPARATION CHART
1"
4 7/8"
1 1/4"
1/8"
Deep
1/8"
Deep
2 1/16"
3 3/8"
3/16"
Deep
C
L
4 1/8"
4 1/8"
C
L
of Lock & Strike
C
L
of
Latch Bolt
Cutout 1" Deep
on Wood Door
5/32" Dia. Drill Pilot
for Wood Frame
C
L
of Lock
C
L
of Latch
Bolt
Cutout 1"
Deep on
Wood Door
4 1/8"
1/8"
Deep
1/8"
Deep
1/8"
Deep
3 3/8"
4 1/4"
4 7/8"
1/8" Deep
1/8" Deep
3 3/8"
1 1/4"
4 7/8"
1/8" Deep
#16 Drill
#12-24 Tap
of Lock
575 Strike
575-2 Strike
576A/B Strike
1”
1-5/8”
1/4”
2-1/4”
2-3/4”
O
utermost door edge
B
eveled edge
Cut-out
For all 98/9975
devices
1/2” dia. hole
for 98/9975-2
double cylinder
devices only
3/4”
Device
Device
CL
CL
11/32”
Mortise
lock
CL
STRIKE PREPARATION
X
X
Center case - 4 holes
Surface mount
Sex bolts or 990 trims
#25 Drill
#10-24 tap
1/8” Drill
pilot 1” deep
1/4” Drill (device side)
13/32” Drill (trim side)
13/32”
Drill thru
Metal
W
ood
Metal
W
ood
Surface mount
Sex bolts
#25 Drill
#10-24 tap
1/8” Drill
pilot 1” deep
1/4” Drill (device side)
13/32” Drill (trim side)
13/32”
Drill thru
Metal
W
ood
Metal
W
ood
*End cap bracket - 2 holes
RHR Shown
(LHR opposite)
Go to instructions on next page before using Preparation Chart
*Prepare end
cap holes after
lock side of
device is
mounted and
hinge side of
device is leveled
