[GreenKeys] 6-40 UNF and other wierd screw sizes

[Paul Wills]

By far, the best source I ever saw for weird screws is McMaster-Carr
(www.mcmaster.com)

They have a very powerful search engine where you can keep plugging in
everything you want about a screw (head, composition, thread, length, etc.)
and it will give you what they have in stock.  They have no mimimum order
either.  I've found several odd threads I needed for telephone equipment
restoration.

PDW


----- Original Message -----
From: <jhaynes@alumni.uark.edu>
To: <W8MAQ@aol.com>
Cc: <greenkeys@mailman.qth.net>
Sent: Monday, December 23, 2002 4:33 PM
Subject: Re: [GreenKeys] 6-40 UNF and other wierd screw sizes


> Teletype mostly made their own.  I haven't tried locally, but have you
> looked at a company that specializes in screws?  I've bought other odd
> sizes from such a supplier.  In the yellow pages here they are under
> Bolts & Screws, and also under Fasteners.
>
> (turning on the philosophy mode) One could argue that Teletype's great
> manufacturing capability was both a strength and a weakness.  There was
> nothing to inhibit a designer from designing a new screw slightly
> different from anything in the book instead of figuring out how to make
> do with a size that was already being manufactured.  So there were a huge
> number of part numbers occupied by screws and nuts and washers.
>
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