[Milsurplus] Battle of Britain "Spitfire Radios" Reference.

[Marty Reynolds]

> Dave,
>
> I'd guess, in that time period, that the screws are probably BA (short for
> British Association), not Metric.  Anything 1/4" diameter or larger is
> probably
> BW or BSF, except on specialty items like panel bushings maybe, which as

ask any motorcycle competitor fm late 60s whatta relief the JA bikes
were then for 2 reasons

  -quality (the usual)
  -maintenance uptick for consistent threads (never mentioned)