Parkerizing carrier parts

[universalgrl]

Any thoughts as to the use of Parkerizing during the assembly process to rust proof small parts bits and pieces used on the carriers and any other cmp's.
Its a simple process and could have been done on an industrial scale.
I want to parkerize all the bits of the steering and brake linkages and hardware on my MK I.
This was a era where smoking was cool, you could wash your hands in carbon tetra chloride and gun control meant hitting your target.