Orion Optics Europa Newtonian Primary Collimation Screw Size

[John]

Does anyone know the size of the older primary collimation screws on the Orion Optics Europa newtonian primary cell ?

My memory is telling me M6 but I'm not 100% sure

These are the ones that I'm thinking of:

Many thanks if anyone can help

 

 

 

[Pixies]

John - can you measure across the flats of the nut? If you have callipers, can you measure the diameter of the bolt?

[John]

2 minutes ago, Pixies said:

John - can you measure across the flats of the nut? If you have callipers, can you measure the diameter of the bolt?

Thanks but I don't have the scope (yet) - I wondered if anyone else has one ?

 

[Pixies]

1 minute ago, John said:

Thanks but I don't have the scope (yet) - I wondered if anyone else has one ?

 

Sorry - didn't want to sound like I thought you had no mechanical knowledge 😬

this might give a clue, or suggest some other scopes to ask about?

https://www.firstlightoptics.com/bobs-knobs-collimation/bobs-knobs-stellalyra-celestron-sky-watcher-newtonian-collimation-knobs.html#:~:text=Although not listed these are perfect for my Orion Optics (UK) 8" Europa Newtonian which although of some age is giving excellent service.

[John]

3 minutes ago, Pixies said:

Sorry - didn't want to sound like I thought you had no mechanical knowledge 😬

this might give a clue, or suggest some other scopes to ask about?

https://www.firstlightoptics.com/bobs-knobs-collimation/bobs-knobs-stellalyra-celestron-sky-watcher-newtonian-collimation-knobs.html#:~:text=Although not listed these are perfect for my Orion Optics (UK) 8" Europa Newtonian which although of some age is giving excellent service.

No problem at all - I used to have one of the scopes but, rather embarrassingly, I've forgotten the size of those bolts !

It's the primary collimation bolts that I'm interested in.

 

Edited October 13, 2021 by John