Missing ISO and DIN standards and McMaster-Carr link for the M3x6 Flathead screws (FHCS)

[AdamWarnock]

I'm pricing out a V2.4 r2 build and noticed that there's no McMaster-Carr link for the M3x6 flathead screws. Also, I noticed that there are no ISO or DIN standards listed with the entry. Below I've listed the McMaster-Carr catalog URL and the ISO and DIN standards. Link to McMaster-Carr entry: https://www.mcmaster.com/91294A126/

ISO and DIN standards: ISO 10642 DIN 7991