On Tuesday, 13 December 2016 09:48:05 UTC, Chris Green wrote:

My daughter's house has a standard 'yale' type lock on the side door,
one that slams shut and opens with an ordinary 'yale' key.

When the key has been turned far enough to open the door it needs to
go a *long* way back to extract the key, it's not just back to the
point at which the latch is released, it's 180 degrees or more.

Is this normal or has it been installed wrong somehow? I don't
remember having to 'unwind' other keys so much to get them out.

It's due to the design of the mechanism on the inside of the door. Some are like that.


NT