Yeah, they should be the original zinc lugs.
Honestly, I don't like some of their stuff. Most of it is aftermarket. That's why when I build my fox bodies I scavange for for as much original, used FORD stuff as possible. I've used weatherstripping from them, the window seals in the doors and non of it was worth a penny. The new weather stripping made my doors leak, (never leaked with the old stuff, it was just torn on the bottom so I wanted to replace it) The window seals around the door glass sucked ass. They are not the right length, I had to work all day rolling the window up and down to get them to stretch. I also had to lube the crap out of them for the glass to even roll up and down. They wouldn't even let the glass roll up all the way.
I am so glad I have hoarded fox body parts for the last 10 years. For my current project, 4VModFox, I have used all original Ford parts for all of the interior. Either I had them in color, or I painted some grey stuff black.