Thunderbird truss rod cover screws

[Ken]

I'm finding it amazingly impossible to source replacement black truss rod cover screws for my Thunderbird.  One went missing.  Gibson is of course no help whatsoever.  Does anyone know where to find these?  It's the flat Phillips head ones.

Thanks.

[Pilgrim]

If all else fails, Birchwood Casey's Super Blue will give metal a flat blue/black finish.

[Ken]

Nice.  Interesting.  I gave up and ordered some #2 x 3/8", which is 1/8" longer than it should be.  Should be fine.  It kills me that Gibson must have tons of these around, but no way for us to get any.