I want to attach something else to the tripod using the threaded bolt on the tripod which normally goes into the body of the camera.
That bolt is about 1/4inch across and I have read that it has 20 threads per inch, so it gets to be called "1/4-20".
I want a nut to fit this.
QUESTION: What would be the reference or specification for the correct nut?
ISTR this threaded bolt is a slightly unusual size in Europe.
QUESTION: Can I get a bush to fit over the screwed bolt in order to be able to get a more widley available nut?
QUESTION: Is there a common nut size (as far as Europe goes) which might fit a bit loosely on the bolt but which could still be tightened?