[Boatanchors] Source for #2-64 cheesehead screws?

[hwhall at compuserve.com]

I'm hoping someone knows where to find an odd item like this one.  It's to replace the lockdown screw on a WWII-vintage altimeter.  The original was blackened brass, with a square shouldered head (which I've heard called cheeseheads) 7/32 inch in diameter & 1/16 inch thick.  Threads were #2-64 & a little less than 1/4 inch long.  McMaster-Carr, normally a name to conjure with, doesn't have anything that small, and that's an unusually large head for such small threads.

Thanks & 73,

Wayne
WB4OGM