Type of TORX screw used with a Mercury Cougar '99 shifter?

A seemingly simple issue with a bit of a tricky solution. I'm looking for the type of TORX screws used with for the shifter gaitor of a 1999 Ford/Mercury Cougar. I'm looking at the assembly diagram, but it doesn't shed any light sadly

Buy a set like this. One will fit, likely T8 or 10