[Elecraft] understanding screw sizes

[Paul Saville]

It amuses us in "Metric World" to pretend we don't understand non-metric
thread sizes. Fact is I still have AF, Whitworth and metric wrench and
socket sets in the workshop. The metrics get used the most though. The
only time I get caught out is with left-hand threaded parts, because I
don't have a full set of left-handed wrenches.

73 Paul ZL3IN

> ...Sorry for those in "Metric Land" who do not understand the US 
> hardware system.  We tried to go metric many years ago and failed. 
> Most of the auto industry is now metric, but for small hardware, the 
> US sizes predominate here.  We have to keep two sets of wrenches if 
> we are to have a complete set.
> 
> 73, Don W3FPR