[Shop-talk] Metric Hardware

[Elton E. (Tony) Clark]

> David wrote:
> Should have gone to a brit car shop.  Tripod mount screws are
> whitworth!  1/4 inch for most small cameras, 3/8 for biger ones.  Both
> whit sizes are have the same thread pitch as unc threads(20 and 16,
> respectively), and nuts interchange.


*>>>Oops! please 'splain that:  If it's 1/4 x 20 & 16 it ought be UNC . . .
do you mean cameras actually have those beautiful round-contour thread forms
of Whitworth?  If Whitworth, I thought it would be sized by the wrench size
. . . unconfuse me!*
*Tony*