[TheForge] Wood screw threads

Sat Dec 27 22:30:01 2003

What I've done is forge  to a square taper and then I take a hot cut and
fuller a narrow groove down the center of each flat as long as the threads
will be, and then hot twist to achieve the correct pitch. By fullering the
narrow groove down the center of each flat before twisting it allows the
bottom of each thread to come to a sharp peak making a more effective thread

Tony Clark
Mountain WI

----- Original Message -----
From: "Larry and Pat Brown" <[email protected]>
To: <[email protected]>
Sent: December 27, 2003 6:17 PM
Subject: Re: [TheForge] Wood screw threads

> Forge a square taper then make it a flat diamond <> then put the stock in
a
> vise and twist with flat jawed pliers working out to the tip. Practice on
> scrap a few times. I've done this quite a few times having gotten the idea
> from a larger screw that I found after cleaning out a fireplace years ago,
> that one was about 1/2" in diameter, most of the screws I've made this way
> were 1/4 to 3/8". Someday I'll get a call for that 1/2" size and I'll wish
> I had kept the piece. Try to keep the spacing even and finish the tip with
> a file.
> L Brown
>
>
> At 03:42 PM 12/27/2003 -0700, you wrote:
> >I was wondering if anyone out there knows how to make wood screw or lag
> >screw threads.  I occasionaly make threaded ceiling or wall hooks and
have
> >been just welding on the cut off threads from a lag screw.  I would
prefer
> >to make the whole thing in one peice and eliminate the less traditional
> >weld.  Any help or ideas would be great.
> >
> >Thanks
> >
> >John Switzer
> >Black Bear Forge
> >7019 Burnt Mill Rd
> >Beulah, CO 81023
>
>
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