Specialty bolts needed to attaching EAF to AT65EDQ

Focusers, Filters, Barlows etc..

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stubblejumper
Posts: 22
Joined: Thu Aug 30, 2018 12:01 am

Specialty bolts needed to attaching EAF to AT65EDQ

Post by stubblejumper » Wed Oct 16, 2019 10:23 pm

First of all I will have to drill a hole for very large tension bolt. See attachment. Then I also need much longer bolts to attach the bracket through the Crayford focuser base to the telescope. The AT65 bolts are 1cm long and countersunk 4mm. I went to Home Depot (large North American hardware/building supply store) and could only find #6 US std bolts that seemed roughly the same diameter. However, the AT65 bolt would not screw into the #6 bolt tester. I am guessing it is metric with a different threads per inch.
ZWO EAF AT65 focuser base.jpg
Any suggestions?

Katherine.Tsai
Posts: 279
Joined: Fri Dec 07, 2018 10:24 am

Re: Specialty bolts needed to attaching EAF to AT65EDQ

Post by Katherine.Tsai » Thu Oct 17, 2019 6:52 am

Sorry we do not have better suggestion.

Katherine.Tsai
Posts: 279
Joined: Fri Dec 07, 2018 10:24 am

Re: Specialty bolts needed to attaching EAF to AT65EDQ

Post by Katherine.Tsai » Fri Oct 18, 2019 2:19 am

Can EAF adpater be fixed via these screw holes?
Attachments
企业微信截图_15713650288763(1).png

stubblejumper
Posts: 22
Joined: Thu Aug 30, 2018 12:01 am

Re: Specialty bolts needed to attaching EAF to AT65EDQ

Post by stubblejumper » Sat Oct 26, 2019 3:41 pm

Yes, if I could find ones long enough. However, I don't know the bolt size which makes it hard to look for a longer bolt. I asked Astronomics about the bolts and they couldn't help me.

I got around the problem by drilling a hole in the bracket and using the tension bolt.

Katherine.Tsai
Posts: 279
Joined: Fri Dec 07, 2018 10:24 am

Re: Specialty bolts needed to attaching EAF to AT65EDQ

Post by Katherine.Tsai » Fri Nov 01, 2019 7:54 am

Happy to knoew the problem is solved and thanks for your feedback, I think others will need this info as well.

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