02-07-2023, 06:04 PM
My understanding was that bolt heads and nuts of both Whitworth and BSF were reduced in size during WW2 in an effort to save on steel. They never returned to the original size.
I have pre war spanner’s that do not fit modern equivalents or some nuts on my Austin whilst the same spanner do fit those that were original.
I have pre war spanner’s that do not fit modern equivalents or some nuts on my Austin whilst the same spanner do fit those that were original.