Those numbers are not in the Boeing PSDS system (Product Standards Data System) so they are not Boeing fasteners.
And FWIW, in the Boeing system the material code is usually (but not always)
"A"=alloy or carbon steel
"C"=CRES (stainless steel)
"V"=Titanium (6AI-4V)
The other letters may indicate plating (such as cad or silver plating) and/or the type of lubricant and/or passivation.
Hope this helped.