Hi jmone,
Somebody posted some pictures of their Algonquins last year that suffered from that rusting symptom of the screws as well discolouration of the cabinet - the white was turning yellow (after comparing under the grille).
I searched for the thread but to no avail. I remember this individual was asked to return his speakers back to Axiom for a replacement.
As for the rusting, it is not something I would expect from an outdoor speaker at this price and especially just after 6 months. You should ask to return these for Axiom to inspect. Hopefully Axiom can improve on the build quality after seeing whats happening to these speakers in what areas and certain weather conditions.
Good luck.
