[Milsurplus] SCR-274 ARC-5 Screws

[Bob W7AVK]

Greetings all - I'm a list lunker, doing very little except "reading the
mail".  But this weekend I received several SCR-274 and ARC-5
receivers.  In looking them over I find they need several screws.

I know this has been covered in the past, but can any one point me in
the direction of where to get the screws for the bottom plate.  I seem
to remember they are 3-48 pan head and a bit unique.  Is that correct?
Are the other screws 4-40?

Also one of the 200-600 Khz receivers has a second remote control spline
on its face just under the antenna post.  It looks to be for controling
the radio's input between a loop and the standard antenna.  There are
also a couple extra antenna posts for what looks to be the loop.  Was
this standard?  I've never run into this model before.

This radio is excess to my needs.  I'm open to offers.

Thanks,

73  Bob  W7AVK