Screws and bolts

Cyclone

Registered
10 May 2011
1,943
7
Staffordshire UK
Best answers
0
I get very confused with screw sizes.
I need to attach the axle boxes to the sole bars, on accucraft models this is done with self taping screws.
What size are these screws?

I also want to attach the buffer beams to the sole bars (if thats correct terminology for trucks).
I believe the accucraft bolts are m2. M2 bolts seem very hard to find with a hex head, but BA are readily available.
I think 9BA is pretty close?
In addition there is undersized heads.
So in 16mm scale which bolts should I use, any recommendations?

Ta