Re: Weird Nut 1/2" 12 TPI left-handed thread

In CAD_CAM_EDM_DRO@y..., "studleylee" <indigo_red@q...> wrote:

> > > Hi,
> > > Does anyone know where I can find a replacement nut:-)
> > > 1/2" diameter
> > > 12 Threads Per Inch
> > > left-handed thread
> > >
> > > Its for a friends bench grinder, and the local sources dont seem
> > > to have one.
> > >
> > > Thanks,
> > > Lee

1/2" 12 tpi is British Standard Whitworth -

(one of the first people to standardise threads was Whitworth)