1965 Dodge Dart Charger

For1965 the gas tank was galvanized but what about the strap and the hook? I'm pretty sure that the strap was galvanized as well as the tank but I have checked out several J-hooks and they seems to be natural with a self locking nut with a red plastic insert.

Does any FABO members have any input to this? They do repop the J-hook with silver zinc finish but that's not assembly line correct!