I lived in a rental apartment. Recently my roommate decide to sublease his room, so I'd like to replace my door knob with a lockable one, but I'm unable to remove this core part ( I don't know what it is called).
Can't quite find a place to screw off this thing.
I suspect it is installed by hammering?
Can this thing be uninstalled in a non-destructing way?
If the answer to 2 is yes, how can this be done ?
Thanks in advance!