"Leo Lichtman" wrote in message
...

"Robert Swinney" wrote: Lloyd, please elaborate a little on
"forging" and
"hardy-hole". You are talking about heating the head beyond red
and
hammering it into a hole (die) of the desired shape - no?
^^^^^^^^^^^^^^^^
The idea is correct, but the words aren't. A "hardy hole" is a
square hole
in the top of an anvil that can be used to hold things like dies or
chisel
edges. You would need a properly shaped die to pound the red hot
steel
into. The trick will be making a die with the proper internal
contour to
produce the shape you need.



"relatively" easy to make the die if you have an good example of the
bolt. Drill a thread sized hole in the stock that you want to make
the die from, heat it to a good yellow heat, hammer the bolt head
sample through the hole to form a recess of the shape you want.

AWEM