EQ6 Pier head center bolt

[Singlin]

Can anyone tell me the diameter of the hole at the centre of the top plate for the EQ6 Mount and does it need to be threaded.

I have bought a Altair Astro Pier head adapter.

[steppenwolf]

Assuming for now that you are talking about the platform on top of the EQ6 tripod - the centre hole is 30.0mm in diameter for most of its depth but the very bottom is drilled and tapped to accept a 12.0mm bolt. This threaded section keeps the mounting bolt centred but also stops the bolt from simply dropping through the tripod when it is unscrewed from the base of the mount.

[Singlin]

Thank's

12mm is what I measured I just wanted to double check.

[steppenwolf]

My pleasure.

[r3i]

Yep, 12mm it is - I used one of these to enable a quick tool-free attach & detach of the mount from a pier: http://www.trend-uk.com/en/UK/product/KB25_M_12/4/213/lever_male_m12x50_adjustable_1_off_.html

[Peje]

On 30/10/2012 at 14:49, r3i said:

Yep, 12mm it is - I used one of these to enable a quick tool-free attach & detach of the mount from a pier: http://www.trend-uk.com/en/UK/product/KB25_M_12/4/213/lever_male_m12x50_adjustable_1_off_.html

Just the info I was frantically searching for! Ordered up M12 bolts in 40, 50 & 60mm just incase, plus some washers