Klarinet Archive - Posting 000782.txt from 2000/03

From: Lars Kirmser <syrinx@-----.com>
Subj: Re: [kl] thread standards (tap for post body)
Date: Fri, 24 Mar 2000 16:35:10 -0500

There are two standards with regard to domestic clarinets: 6-32 and 8-32
(post thread on soprano clarinets)
Best Regards, Lars Kirmser THE WOODWIND QUARTERLY AND MUSIC TRADER

At 12:31 PM 3/23/00 -0800, Doug Sears wrote:
>I have a need (the reason why is a long story) to mount some hinge posts on a
>Bundy clarinet (the older, large-bore model, Bb soprano). So I called
Ferree's,
>and they can order the posts from Selmer, and Ferree's even has a drill with
>countersink for starting the hole the post goes into. However, they don't
know
>about the tap for threading that hole. It looks to me like maybe an 8-24
>bottoming tap, a nonstandard thread you couldn't buy at any normal tool
store.
>Ferree's suggested I call Selmer, and the guy there didn't know either. He
said
>he'd check with their repair techs and call back, but he didn't sound very
>hopeful. The Erick Brand repair manual refers only to "Post Taps (RT183)
No. 8
>or No. 9". I think it's weird that Selmer sells posts but provides no
means for
>mounting them.
>
>I'm left with a specific question, what tap is this and where do I get it,
and a
>lot of more general questions. The threads on the hinge screws are 1-56,
right?
>(also nonstandard: NF is 1-72, NC is 1-64) Do all the U.S. makers use
these same
>threads, or do they vary from make to make? Do the French manufacturers use
>metric threads? Is there a list somewhere of these numbers (thread sizes for
>post bodies, threads on hinge rods, diameter of hinge rods, etc.).
>
>Before somebody lectures me on how hard mounting posts is, let me say that I
>know that posts are attached in the undrilled state, then drilled and
faced for
>the specific key, and I know what it takes to do that.
>
> --Doug
>----------------------------
>Doug Sears dsears@-----.org/~dsears
>
>
>
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