On 04/06/2021 14:39, John Rumm wrote:
Weld a nut on the end, and add enough extra weld so that you can round
it over with a grinder.

Was thinking of that but what a PITA.

Another option - forming a head on a the end of some rod:

From about 1:45:

https://www.youtube.com/watch?v=Az3s...3BD1&index= 5

That's a nice vice. That's a very nice vice.