Well......I looked at my original grille hardware and the closet I can come to AMK is this.
B-12081 Screw....Looks nearly the same as my original, same dimensions, black phosphate, except my original has 3 bars inside the head.
B-12250 Spring Nut ....Similar to my original, my original looks like a (U) nut, that is the (bent) and (flat) part of the nut are the same length......... whereas the AMK nut looks more like a (J) nut, the (flat) part of the nut is shorter than the (bent) part.
My car is a 68Z, 07C, NOR
Hope this helps you,