As openings become increasingly complex so too are the options for securing them.
Time out door lock function.
Power door locks behave erratically.
Cylindrical mortise or exit device.
The relevant standard defining locks functions depends on the type of lock it is.
Door locks can have over 50 locking functions available that meet any number of situations.
The function or mechanical behavior of a lock especially a mortise or cylindrical lever lock should be specified for an opening.
Door lock functions depending on the type of door lock you are working with i e.
There are 5 door lock functions that are essential and that you will see used on 99 999 of all projects.
A typical manufacturer s catalog can offer upwards of 50 different lock functions making it difficult or even impossible to remember how each function works.
Power door locks do not function.
Another symptom of a potential problem with the power door lock actuators are door locks that behave erratically.
These are classified into more than 20 types using codes developed by door hardware group bhma.
2 minutes to read 3.
Lock functions determining which lock function is appropriate for which door can drive a specifier crazy.