"Dave Plowman (News)" wrote in message
...
In article ,
Andy Wade wrote:
Dave Plowman (News) wrote:

And NC and NF are still common in the US.

And NPT.

Sadly unified not so in the UK as it was a far better system for
general use than metric, IMHO.

Why, OOI?

For general purpose fixings on cars UNF was the usual - and seemed to hold
rather better than standard metric. Less prone to vibrate loose.

Not IME.
They both vibrated loose unless you locked them.

Anyway having one that vibrates loose twice as slowly as another is still
useless.
Even ten times longer is still useless.