[Healeys] lost parts

[Mike Sinclair]

Help.  This is my first posting, so hope I am doing it right.  I am putting my
car back together after a long time, and can't find a couple of small parts.
These would be the two bolts that hold the brake master cylinder in place.
They screw into threaded holes.  If you could advise me as to what size, maybe
I could find them.  I don't know whether they are American or Whitworth
or.......?

At least I still have the master cylinder.

Austin Healey 100-M
BN2

Thanks in advance.

Mike