"riverman" wrote in message
...
How you you attach them firmly?

I've found 2 ways to attach cone heads securely:

1) pot them in with glue - 5 minute epoxy works best but hot glue work fine.
Wrap some thread on the shank before
applying the head will give the glue something to 'key' to.

2) Fit a drilled metal bead onto the hook immediately after putting on the
cone head, Size the bead so it mostly fits
into the concave part of the cone. Put it on so the side with the larger
diamter head goes on first then build a bump of
thread directly behind the bead and apply head cement or CA glue to the
thread.