On Mon, 17 Aug 2009 15:17:03 -0700 (PDT), the renowned brakadabras
wrote:

On Aug 17, 12:17*pm, Spehro Pefhany
wrote:
What would be my best bet for getting a relatively small quantity
(current requirement is 100 pieces) of machine screws (a couple of
sizes, like 6-32) made from 0.25" dia. metal rod. The material (Nb) is
soft like copper and generally nasty to machine. I'd like a Torx or
similar head so it's not as easy to screw up as a slot.

Ideas? Real screw-making machines - heading and thread forming- look
like a bit much for the purpose (thousands of pounds and many HP). *

Possible change in design: a threaded rod, a washer and a nut on top.

Great, now I have to figure out how to make/get made special Nb nuts
and Nb washers, as well as Nb threaded rod.

;-) ;-)


Best regards,
Spehro Pefhany
--
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