[ARC5] [Milsurplus] British Hardware for the TR9-D

[J. Forster]

>From the Wiki link:

BA      OD          TPI

4     0.1417 in    38.46
6     0.1102 in    47.85
8     0.0866 in    59.17
10    0.0669 in    72.46


#4-40   0.112
#6-32   0.136

-John

================

> I would suggest more likely 4BA.
>
> Note that the odd-numbered sizes are uncommon and unlikely to be found in
> radio equipment. (The British Post Office used them extensively, as did
> 'Gents of Leicester' in their electric clock systems, so they are not
> unknown.)
>
> Andy
>
>
> ----- Original Message -----
> From: "J. Forster" <jfor at quikus.com>
> To: "David Stinson" <arc5 at ix.netcom.com>
> Cc: "ARC-5 List" <arc5 at mailman.qth.net>; <milsurplus at mailman.qth.net>
> Sent: Wednesday, January 11, 2012 2:05 PM
> Subject: Re: [Milsurplus] British Hardware for the TR9-D
>
>
>> Dave,
>>
>> Look at BA nuts and bolts. I'd think roughly 6 or 8 BA, but it's been a
>> loooong time. (the bigger the number, the smaller the screw)
>>
>> -John
>>
>> ===============
>>
>>
>>> Still trying to ID these TR9-D screws.  Both are "cheesehead" screws.
>>>
>>> One is the same physical size as a #4-40 x 3/8ths, but has a fine
>>> thread.
>>>
>>> The other is very slightly larger thread diameter than #6-32 x
>>> 3/8ths,
>>> but has a finer thread.  These also have nuts on them.
>>>
>>> Anyone?
>>>
>>> 73 DE Dave AB5S
>>>
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>>
>>
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>
>
>