In article ,
Jim Weir wrote:
but says
absolutely nothing about how the hex head (nut?) and locking nut get onto the
rod.

It mentions in one sentence near the end (last column) that he threaded
it, and warns to get the bolts tight before you start whacking them with
a hammer and ruining the threads.

I was looking at those plans but figuring I'd just weld the head on.

It is also true that if you pound a lot on that hex nut at the top (if that is
what it is) there is no chance in hell that you will ever be able to separate
the nut from the rod without a torch.

I don't think you're ever supposed to get it off. Why would you? It
looks like it's only there to hold on the washer, which is only there to
give you something to pry it out by.

--
Ben Jackson

http://www.ben.com/