Sump and gearbox plugs same?

[21TonyK]

Anyone know for sure if the sump and gearbox drain and fill plugs are the same size on a N16? Struggling to find a definative answer ad not te sort of job I want to start without the right bits in place!

Got one set of websites saying 16x1.5 for the sump, 18x1.5 for the gearbox and others saying 18 for both?

Cheers