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.
Meat eater. Woodworker. PS3 Gamer. Home Theater Guy. Beer Drinker.
WSM 22.5 and random cooking stuff used to help form my shapely manly figure.