Does anybody know what the thread size is on a bicycle pump connector, such as this one?
Note: I'm not talking about the female end that goes on the valve stem on the bike (that's a Schrader valve thread), I'm talking about the male end that connects with the pump. It looks almost like an M5, but doesn't quite fit in an M5 female connector.
I have spent quite a bit of time googling the question, but have drawn a blank so far.