Try a hardware store, John. As I recall either the Home Depot or the
Lowe's (or both) stores near us have a thread try-gauge. I've got one
here at home, if you're desparate and want to ship me the screw.
Jim
kilopascal wrote:
>
> 2001-01-14
>
> The inkwell is back together. I have no way of measuring the pitch other
> than to try to screw it into a known nut. As I noted, the diameter is
> "close to" M4. The screw will thread about 2 turns into an M4 x 0.7 mm nut
> before binding. This tells me it is either an M4 screw with a thread pitch
> other than 0.7 mm as is the standard now, or if it is an imperial screw,
> like #8-36, if there ever was such a size. I was asking to anyone who might
> know what fastener standards might have been in use in France in 1944 or
> before. Also, the screw is 11 mm long, which is not a standard metric
> length in today's screws. In FFU, this could be a 7/16 inch long screw.
> I'm not sure if 7/16 is or ever was a standard length.
>
> This is all the information I can provide.
>
> Glückliches Neues Jahr!
> Happy New Year!
>
> John
>
> Keiner ist hoffnungsloser versklavt als derjenige, der irrtümlich glaubt
> frei zu sein.
>
> There are none more hopelessly enslaved then those who falsely believe they
> are free!
>
> Johann Wolfgang von Goethe (1749-1832)
>
> -----Original Message-----
> From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On
> Behalf Of Joseph B. Reid
> Sent: Sunday, 2001-01-14 09:00
> To: U.S. Metric Association
> Subject: [USMA:10464] Re: French fasteners circa 1944
>
> Kilopascal asked in USMA 10455:
> >In the autumn of 1944 my father was in the US army ETO and at
> that time was
> >in Paris. While there, he bought some souvenirs. One in
> particular that my
> >mother still has is an inkwell. It had turned over the years from copper
> >colour to black. She recently decided to paint it gold. She had
> me take it
> >apart so she could do a proper job. The only thing that needed to be
> >removed was Notre Dame which sat in the middle between the two ink wells.
> >Notre Dame was held to the base by a single screw. Once apart I
> was curious
> >to know what type of screw it was. Assuming it might be metric, I first
> >tried to screw it into an M4 nut. It only went about 2 turns,
> then it bound
> >up. I had no other screws to try and now that it is back together I won't
> >have the chance to try it on other nuts. The screw is a round head, not
> >pan, and the shaft length is 11 mm (not 10 mm). I checked that length a
> >couple of times to be sure.
> >
> >What I'm curious about, is what fastener standard did the French
> use in that
> >period? Could it be an American type screw? Could it have been British
> >Withworth? Or could it have been metric with a thread pitch
> other than 0.7
> >mm?
>
> What is the exact diameter of the thread, and what is the ptich? Without
> that information it is impossible to make a diagnosis.
--
Metric Methods(SM) "Don't be late to metricate!"
James R. Frysinger, CAMS http://www.metricmethods.com/
10 Captiva Row e-mail: [EMAIL PROTECTED]
Charleston, SC 29407 phone/FAX: 843.225.6789
