Help identifying 1.27mm spring-loaded connector
http://www.digikey.com.au/scripts/dksearch/dksus.dll?vendor=0&amp;keywords=samtec+sib

In the question you referenced, there is a link to a datasheet with a part name - santec SIB series. You could put multiple units side-by-side to give more pins.

Edit:

How about these: 

http://www.samtec.com/technical-specifications/default.aspx?SeriesMaster=SIBF