Help with door card/arm rest
 

I had to disassemble the driver's side door on my '73.5 in order to have it rekeyed. While I was out, the "Tidy Fairy" dropped by to tidy up the parts I had laid out schematically on the kitchen table. Now, I seem to be missing a hex bolt, but I am unsure as to which one.

I have two cadmium hex bolts of the three for the arm rest, one longer than the other. The parts catalog from Porsche seems to list these as "pan head" screws, which they certainly are not, and is no help as to which bolt I am missing.

Anyone care to chime in? I will take some photos when I get home.

Thanks.