[dsg-hallb_rich] [EXTERNAL] Nuts

[Tyler Lemon]

I found these also on McMaster

https://www.mcmaster.com/93935A320/

They’re for M3x0.5 threads and are 1.8mm tall.

The nuts will be silver metallic, though.
________________________________
From: Marco Contalbrigo <mcontalb at fe.infn.it>
Sent: Tuesday, March 15, 2022 6:12:42 PM
To: Tyler Lemon <tlemon at jlab.org>
Cc: Marc Mcmullen <mcmullen at jlab.org>; dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>; Tomassini Sandro <sandro.tomassini at lnf.infn.it>; Dario Orecchini <dario.orecchini at googlemail.com>
Subject: Re: [EXTERNAL] Nuts

Ciao Tyler,
thank you for the prompt reply.
Ideally we look for M3 nuts, 1.8 mm thickness.
Marco.

On Tue, 15 Mar 2022, Tyler Lemon wrote:

> Hi Marco,
>
> Those nuts from McMaster Carr have a six week lead time.
>
> Is the main specification that the nuts be for M3 screws and are ~2mm thick?
>
> _____________________________________________________________________________________________________________________________________________
> From: Marco Contalbrigo <mcontalb at fe.infn.it>
> Sent: Tuesday, March 15, 2022 6:05:17 PM
> To: Tyler Lemon <tlemon at jlab.org>; Marc Mcmullen <mcmullen at jlab.org>
> Cc: Tomassini Sandro <sandro.tomassini at lnf.infn.it>; Dario Orecchini <dario.orecchini at googlemail.com>
> Subject: [EXTERNAL] Nuts
> Dear Tyler and Marc,
> we would urgently need thin (<2 mm) nuts to fit
> the electronic board stack into the RICH panel.
> With the one available in EEL125 (2.5 mm) the
> connector mating is not good.
>
> We would need 1500 pieces.
> We found a possible model at McMASTER-CARR:
> 90370A203       $5.71 for a pack of 100.
>
> Others seem to be much more expensive. I cc
> Sandro and Dario for possible comments.
> Thanks, Marco.
>
>
>
>
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