The impossible screw

(got your attention?)

I'm having a lot of difficulty getting a .8 metric screw with ***fine threads***. Needs to be maybe .8 to 1 cm long. Socket cap head, stainless.

The purpose: I'd like to replace the screw on my Tak finder, which goes in the illuminator hole, with something that I can turn in and out by hand. The default screw looks pretty but it is slotted and therefore requires a tool or a dime, not the best thing for cold weather. (I always remove the illuminator, having found them to be finicky)

Please don't suggest mcmaster-carr or a google search. I've done both and am not having luck; even bought the mcmaster-carr coarse threads to discover that fine means fine.

If there is someway to improvise a plug that would work too. Though of course "pretty is preferred," since "pretty" seems to be what refractors are about (among other things).

thanks
Greg N

I will check our local Ace Hardware which has about 80' X 4' of drawers with screws bolts etc. Tis where I get all my nuts and bolts, metric/socket cap. Usually for my cycling needs, but commonly also for astronomy.

8)

So how is that new finder?

Dmitri

Metric Screw & Tool has everything. Their website is a bit awkward, as they only show a scanned version of their catalog. But pull up the Table of Contents, and look under "F" for all their fine-thread hardware.

http://www.metricscrew-toolco.com/

Mark

Greg
Here is a picture of a metric socket-head screw with a .8mm (10 threads for 8mm)thread pitch approximately 1cm long. It is 4mm wide. Somehow methinks your screw needs to be narrower. If this is what you want, send me your address and it will arrive. No charge. It would cost more to repay the postage than it is worth. If you need narrower, let me know.

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