[SEL] bolt/fastener finishes

[bill at antique-engines.com]

Really??!!!? Wow.
Now, could I replate my now black but rusty bolts with the tin/zinc
plating from Eastwood www.eastwoodco.com) and then dip them into such a
solution to turn them black?

Bill

> I quite accidentally found that if you dissolve steel wool in muriatic
> acid till it quits bubbling and leaves an excess of steel wool, making
> a pretty green solution of ferrous chloride, and touch this solution to
> bright zinc plated bolts, they will almost instantly turn a deep black.
> Rinse them quickly as the iron chloride is very corrosive if left.
>
> John
>
> On Jul 9, 2008, at 7:59 AM, bill at antique-engines.com wrote:
>
>> I've got a project going that has bolts, nuts and washers that aren't
>> "zinc" or "galvanized". They are black. Best I can tell is they are
>> zinc
>> phosphate (not phosphate and oil)
>> They actually held up as well as if not better than the silver plated
>> bolts and nuts in the same areas.
>> I'd like to get the SAME look - the flat black of the zinc-phosphate
>> and
>> not use the silver/zinc plated bolts.
>> Some are special - flange nuts, thick washers, etc.
>> Is there a way I can do this at home?
>
>
> John Culp
> Bristol, Tennessee, USA
>
>
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