I suspect you saw my recent quest for #3 round head blued wood screws. I finally found them here:
Shenandoah Antique Restoration
559 SW Belmont Ave
Lawton, OK 73501-8298
Their website is:
http://www.shenandoahrestoration.com/Email is: Info@shenandoahrestoration
Toll Free telephone number is 800-575-1960
They were excellent to deal with and went out of their way to make sure what that they provided me with what I wanted.
They sell escutcheon pins in brass/steel, various types of cut steel nails (large/small), un-plated wood screws in flat head, round head and oval head. Also trunk tacks and trunk nails in steel (also brass plated).
You might find something you have been looking for. If not shown on the website just call or email to see if they have it.
Dennis