Wow, those are difficult to find!
Mouser.com carries them, took a while to find
http://www.mouser.com/ProductDetail/HARTING/09185067813/?qs=%2Fha2pyFaduj7BLHWV%2FuBs%2FiRbiDY70V2sRvfCOIHDkgJRlRz9Dem7A%3D%3D
Don't know if that helps in Australia ...