Mk5 BKD GT TDI ASV bolt size?

[Alexhodge]

Hi I'm getting fault code coming up
P2108 Throttle Actuator Control Module Performance.
I took the asv off to give it a clean to notice it was missing one of the three bolts bolting it in.
It's the long one that goes up through the egr and into the manafold missing and can't seem to find the size for it anywhere.
Anyone got any ideas?


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