Tach. fasteners

[rgp266]

Converting a Clock Rallye dash to a Tach. dash on my '73 RR. Any one know what size fasteners I need? The pedestals are there for the fasteners but need to be opened up and the threads tapped.
T
hanks
Bob

 

[philcollins]

They are the same as those for the clock...
Botton housing in the picture.

 

[rgp266]

They are the same as those for the clock...
Botton housing in the picture.

View attachment 511992

If I had the clock and/or the fasteners that would be great but........I don't. What I need is thread pitch and count plus fastener length. I can tell you that the holes for the fasteners are 3/16".
Thanks
Bob

 

[philcollins]

Understood.

 

[72RoadrunnerGTX]

8-32

 

[rgp266]

Thank You, Sir!!