Standard screws and bolts for scopes/dovetails

[emadmoussa]

What are the screws and bolts that most likely to be used with Farpoint & ADM dovetails, rings, clamps..etc?

Also, what's the size of the standard C11/C925 OTA screws?

[Gina]

My SW bars and rings use M6 bolts for the main fixings and quarter inch UNC for the camera attachment points on top of the rings (standard camera tripod bush size).

[emadmoussa]

Due to the lack of certainty, I guess there's also the option of variable length M4//M6/M8 assortment screw bunch - probably will cover most dovetail/clamp requirements.

[Bizibilder]

You will find quite a mixture of metric and imperial sizes on astro kit. Europe is almost totally metric but the USA and Japan still use imperial - hence the mixture!

[emadmoussa]

You will find quite a mixture of metric and imperial sizes on astro kit. Europe is almost totally metric but the USA and Japan still use imperial - hence the mixture!

So I realized when I tried to piggyback the guide scope..

[Astrobits]

Standard camera bush is usually quoted as 1/4" 20 ( Quarter inch Diameter, 20 threads per inch ) which is the same in BSW ( British Standard Whitworth ) and UNC ( Unified National Coarse ).

Nigel