Special Fasteners?

[Rocket Science Racing]

RE: Oil seal replacements on the front of an A4 1.8Tq engine (AEB engine)...

Are there any special fasteners I have to worry about on any of the crank or
cam sprockets or pulleys? Any special tip/hints to holding them from
spinning while the fasteners are removed?

I don't consider Torx "special" (luckily I have plenty of Torx bits :-)

Thanks,

Scott