[Healeys] Instrument clamp nuts

[Michael Salter <michaelsalter@gmail.com>]

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I have a collection of instrument retaining clamps and nuts but am confused
about the different threads on those nuts.
As far as I can find the thread on the studs on the Smiths/Jaeger is 3BA
however, I have several nuts (these are the round ones with various sorts
of knurling on the periphery) that seem to have a different thread and will
only go onto most of the instruments a turn or 2 before jamming.
Does anyone know if there is more than one thread used for these studs and
other then 3BA what is the other thread.

M

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-family:arial,sa=
ns-serif;font-size:small">I have a collection of instrument retaining clamp=
s and nuts but am confused about the different threads on those nuts.</div>=
<div class=3D"gmail_default" style=3D"font-family:arial,sans-serif;font-siz=
e:small">As far as I can find the thread on the studs on the Smiths/Jaeger =
is 3BA however, I have several nuts (these are the round ones with various =
sorts of knurling on the periphery) that seem to have a different thread an=
d will only go onto most of the instruments a turn or 2 before jamming.=C2=
=A0</div><div class=3D"gmail_default" style=3D"font-family:arial,sans-serif=
;font-size:small">Does anyone know if there is more than one thread used fo=
r these studs and other then 3BA what is the other thread.</div><div class=
=3D"gmail_default" style=3D"font-family:arial,sans-serif;font-size:small"><=
br></div><div class=3D"gmail_default" style=3D"font-family:arial,sans-serif=
;font-size:small">M</div></div>

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