r ranson wrote:
T Melville wrote:If I was making it, I'd use one of these. I think I'd find it easier to install than a t-nut.
that looks neat. Something that shape would work well.
I'm trying to see the tpi (threads per inch) on that. It says "bolt pitch 20" - but 'pitch' is the metric measure of threading and for a camera mount, it is usually "pitch = 1.270" Whereas in imperial, it would be written "1/4-20 UNC"
I'm wondering if I could find something like this is brass or a non-plated metal. I like brass because it's softer than the female connector in the camera so any cross-threading is less likely to break the camera than the easily-replaceable mount.
In either case,
ALL threads have a "pitch" which is the distance between each turn of the thread, axially. It is expressed differently in Metric and "Imperial".
Metric is how far ONE thread is from the next, as in M8 x 1.25, which is 1.25mm between threads. The pitch can be all sorts of (decimal) fractions of millimeters, but usually round-ish amounts like 0.8 or 1.25 or 1.5.
Imperial is how MANY threads are within ONE INCH of length, as in 1/4-20, which has 20 threads per inch. The pitch (usually) is a whole number per inch, such as 13 or 20 or 32 (there are exceptions, but usually on giant threads like 4-1/2 tpi).
1/4-20 is the standard camera tripod mount.
You
should be careful about the length of the screw that goes into the camera, it is a shallow hole and it is possible to damage the camera by driving too long of a screw in there.
If it's too long, you can poke through the bottom of the hole, strip the threads, or break off your mounting stud in the hole...