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Subject: Re: [M]: Re: Thumb Screws for Collimation (again)
From: Email address hidden
Reply To: mapug@shore.net
Date: Thu Dec 02 06:50:53 1999
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While you're here, how about checking out the
Astronomy Book
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At 11:49 PM 01/12/99 -0600, you wrote:
>I have seen it posted here although I have not ordered any yet.
>The screws are 6-32
> >From McMaster Carr
>P# 91746A128
>Description: #6-32 Size x 1/2" Long, 1/8" Height, 3/8" Diameter, 18-8
>Stainless Steel Knurled Head Flat point thumb screws.
>Should be $10 ppd.
>#6 washers or 1/8" nylon spacers may be required
It is soooooo easy to silver solder a 1/2" flat washer into the slot of a
1/2" 6-32 machine bolt. I found mine stuck out a little more than I
wanted, so I cut half of the washer away and filed, rounded, smoothed and
sprayed flat black. They look like little wing screws. Cost- 10
cents? Rob Roy
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