If it isn't SS it more than likely Zinc or Cad plated.
Don't worry about it.
No Baby has been born with two heads as a result of using Galvanized fasteners,
and in fact, there is no report of anyone becoming ill due to the use of same.
Originally Posted by EatonHoggBBQ
Are these washers and bolts galvanized? In the charcoal basket that may be a problem.