69 rear bumper guard cushion nuts

[Danzo]

What would the correct finish for these "nuts" be?
Thanks, Doc.

[z28z11]

Appear to be gray phosphate finish, at least mine are (owned since '73). Pretty sure the '68's are the same, someone correct me if I'm in error.

Regards,
Steve

[Edgemontvillage]

Manganese (dark) phosphate.

[169INDY]

Here are my 68 rears right after taking them out of a bag w/ evaporust still wet
FWIW

Jim

[rszmjt]

Manganese (dark) phosphate.

I agree Lloyd, mine are the same owned my Z 46 years.

[Danzo]

Thank you.
Doc

[68camaroz28]

Yep same for fronts as well.