Mdkelley,
The place I got them from might have said that too, in the small print somewhere. I got them from Red Barn Customs in MI, but the packing label said Unverferth in Kalida, OH, who I suspect really made them.
Anyway, they are steel, proper thickness and strength, nice and round, etc.
Ed
Unverferth is a long time agricultural equipment manufacturer that also makes wheels.
Interesting read. If their wheels will hold up some of the stuff the make them for, they'll probably do fine for your Big Bolt.
