[rollei_list] Re: ?? True Sizes of Tripod Mounting Holes
- From: John Jensen <jwjensen356@xxxxxxxxxxxxx>
- To: rollei_list@xxxxxxxxxxxxx
- Date: Mon, 27 Aug 2007 16:12:55 -0700 (PDT)
Marc, I don't see that there is an equivalence to the
Unified thread and to a standard metric thread. For
the 3/8-16 thread the pitch distance is 0.0625". This
is equal to 1.5875 mm. The 3/8" (0.375") thread size
is slightly smaller than an M10 which has a thread
size of 0.3937" and a pitch of 1.5 mm.
If there were a hypothetical M9.5 thread (0.374") with
a 1.5 mm pitch, it would come quite close to matching
the 3/8-16 thread size. But I don't see that there is
such an animal.
John
--- Marc James Small <marcsmall@xxxxxxxxxxx> wrote:
> I would like to know the true specifications of
> the two common tripod threads. I believe that
> the larger thread has a Metric measuremetn which
> works with an SAE thread. I would appreciate
> your help in providing the SAE and Metric
> measurements for both the smaller and the larger
> mounts. Extra points to those who can identify
> the actual pitch of the thread (DIN, SAE, or
> Whitworth, or whatever).
>
> Enquiring Camera Lore Fanatics Want to Know!
>
> Marc
>
>
>
> msmall@xxxxxxxxxxxx
> Cha robh bàs fir gun ghràs fir!
>
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