I've only ever been using "regular" dash, a minus, for that. How do you even type yours? If I ever needed differently-sized dashes (and I don't know the difference between them) I always used wiki to copy them.
(disclaimer: I feel like this obsession with dashes is special to native English speakers, which I'm obviously not)
(disclaimer: I feel like this obsession with dashes is special to native English speakers, which I'm obviously not)