I've got an older (circa 2009 or 2010) NexStar 8" GPS scope and after the Mercury transit, the screws for the counterweight system I have mounted along the bottom of the tube must have vibrated loose and so I need replacements.
I searched through the messages here and elsewhere and can't seem to find what screw size is needed. These are the real small screws on the bottom of the tube - I thought they were 8-32 or 10-24 but that's not right. I took one existing screw I had left to a hardware store and even the metric screws didn't seem right - they may be an M4 or M5 but the thread didn't seem right.
Anybody have a definitive answer on the size & thread pitch for this scope?