Bolt size and servo vacuum

So I went to change my dump valve tonight and managed to drop one of the bolts down into the abyss below the turbo, does anyone know what size these bolts are or have a part number or anyone got a spare one I could buy?

Then to round off my great night the plastic tee piece for the dv vacuum snapped off the rigid plastic pipe, is this replace able on its own or is it a case of getting a whole new vacuum pipe right back to the servo?

 

Anybody?

 

Yeah it is that one Ian thank you.

 

Prize goes to Matt, Ian you’re useless
And in case anyone else needs one had to get a new pipe from Renault £39.44,