Installation Technical Manual
34 HAC Standard fixing - 02/2018dormakaba c-lever pro
4.10 Determining screw length
The internal and external fittings are screwed together.
If necessary, the screws are extended with elongations.
• Determine the screw length and the number of elongations using the table.
Clamping length* (mm) Screw length
M5 x
Number of
elongations
from to
38 54 40 mm -
54 64 50 mm -
64 72 60 mm -
72 80 40 mm 1
80 90 50 mm 1
90 100 60 mm 1
*Clamping length = door thickness + thickness of the replacement plate(s)
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