Bracket Bolt size help

I just recently went through the whole process of getting at my banjo bolt so I could remove the filter on my used 05 LGT.

I noticed that 2 of the bracket bolts were missing (I assume the previous owner forgot to put them back when he was inspecting the bolt or something). So all I have left holding the bracket is the one vertical 14mm bolt closest to the front of the engine. (shown in this picture below)

Could anyone tell me the size of the remaining nut and bolt I am missing?

(MY guess is the nut is 14mm fine thread, and the bolt is 10mm fine thread but I am not sure of the length)

It's probably not a huge deal, but I am one of those people that hates knowing I'm missing a few bolts in my engine heh.