"Max" wrote in message
...
On my LPG bottles there is a Torx *type* screw. I say *type* because it
has only 5 points instead of 6.
Where might I find a "driver" for that type screw?

They're called Torx Plus 5 points.

http://www.toolwarehaus.com/STAR%20TORX.asp
http://www.wihatools.com/700seri/716_ipr_serie.htm