Fasteners for exterior redwood lattice

I dismantled and built a new gate out of fir or pine 2x4s and redwood lattice strips in a cross-hatched pattern, similar to the one I dismantled. I had a box of 1.5" 4d hot galvanized nails, and used most of the box on the gate.
Now, I've decided to rebuild the gate surround with similar materials in a similar way.
I already painted the gate with Kilz 2 primer followed by Benjamin Moore exterior Low Lustre MoorGard.
Now, I notice that the box of nailes I used (Grip-Rite) states:
Stainless Steel or PrimeGuard is recommended with Cedar or Redwood."
Should I heed this warning? It's a little late for the gate, but I could get PrimeGuard, which I guess is a special primer that's suited to protect metal, or even some stainless steel nails, although I imagine that such fittings would be quite expensive. Why can't I do as I've done so far and use galvanized nails? Is Kilz 2 unsuitable? I have a lot of Zinnser Cover Stain oil based primer. Would that be OK?
Dan
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wrote:

Anything but stainless steel will cause the surrounding wood to darken. The wood will darken even if the screw holes are plugged, primed, and painted. This is true for any kind of outdoor wooden project. Stainless will last 2 to 3x longer than galvanized.
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Phisherman wrote:

Bronze too?
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dadiOH
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