Hardware Treatments

In other restorations (Toyota LandCruiser 1969) I have had the hardware restored via a gold colored zinc plating treatment, it was super cheap, matched original for like $60 for a 5g pail of hardware. Not my choice for my A body. Recently someone posted a pic of some hardware that he had treated with some kind of gray product although the pieces looked like natural steel and I'll be damned if I can't find that post lol. I'd like to hear what you all are using to restore old hardware beyond wire wheeling.

Thanks and HAPPY NEW YEAR!