None taken

This nobody will quibble about - it is very easy to improve on Zhumell's screws and springs

The primary screws on my scope were 6mm. I don't know what the secondary screws are. They are probably metric as well.
Knobs have their advantages though. Means you don't need a screwdriver - which for me means one less thing to drop on my mirror !

Springs are available at Ace, I know, I bought some there, and elsewhere I'm sure. Those springs my be equal or better than these specialized astronomy sources.

Let us know your experiences !

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Forgive me - no irreverence intended - but the price for the knobs and the springs from Bobs Knobs seems steep.

$5.33 for each spring
$6.66 for each secondary knobs
$4.83 for each primary knob

Kwalker bought the replacement springs at ACE for 50 cents each. What makes the springs from Bob Knobs so much more $$$?

Does anyone have the thread sizes handy for someone to buy the knobs cheaper anywhere else?

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