Fw: just what is 7/32"?

[Ron Nossaman]

>Dale;
> Double "helix" might not be the correct term that's why I put "?" after
> each use. :-)
>It is where a double set of threads are cut in a cylinder, or said another 
>way where there are duplicate, parallel, sets of threads running on the same 
>cylinder.
>Jim Bryant (FL)


Hi Jim,
The only double helix threaded agraffes I've ever heard of are the 9/32"
things Schaff sold for at least 20 years, that wouldn't fit anything on the
planet - even after rethreading the hole with the tap they sold for the
purpose. Even if they did work, they'd be awfully hard to align.
Ron N