Kaba E-PLEX 2000 Series Installation Instructions Manual page 15

e. Remove material from within the strike outline so that the strike will
be flush with the doorframes.
f. For ASM, install the dust box (optional for wood door frames, required
for metal door frames), and check the strike handing on the template.
Install the strike using the screws provided. Use wood screws for wood
frame and machined screws for steel frames.
Note: When strike is installed on wood frames under one inch thick, wood
screws supplied are not adequate. Use screws of efficient length to
engage the structural stud behind the frame. Use only the strike and
dust box supplied. Use of non-approved parts may void the warranty.
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