Absolutely. It's not a health concern (except for galvanized), it's a rust issue. The basis "allthread" at the hardware store is fine. After a few 'smokes', you'll have enough fat and grease on it that it probably won't rust anyway.
Careful chhipping up the porcelin coating on the WSM though.
A man wearing a helmet defending his country should make more money than a man with a helmet defending a football.