Arvid,
Thanks for the lead... The URL's description does agree, except that my
fastener has a pretty fine pitch. I wonder if McMaster has these beasts, too.
[later] No, McMaster doesn't have them, nor MCS. These Double-Lead, or double
thread screws are a little hard to find. At least I have the name to use.
Thanks again.
Ken
-----Original Message-----
From: ext Arvid Jedlicka [mailto:arvidj@visi.com]
Sent: Monday, May 06, 2002 9:52 AM
To: Landaiche Kenneth (NET-BBS/SantaRosa); shop-talk@autox.team.net
Subject: Re: Mystery fastener
I think its called a Double Lead screw.
http://www.mcfeelys.com/html/ttp.html
> I'm attempting to restore a pair of speakers and trying to find a mystery
>screw. It appears to be a 1/5" #12 wood screw with a
double thread (that's the mystery part). Threads start near the head at 180
degrees apart and wind down the shank. It makes a very
tight thread spacing. Have any of you seen such a screw? And what is that
double thread officially called? The counter men at my
first two hardware stores thought I was a little crazy, even with the old rusty
screw in hand.
>
> Thanks,
>
> Ken
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