Split Rivets

[Henner Meinhold]

Hi,
when silver soldering more complicated assemblies like "real" locomotive
boilers the parts need to be temporarily held together. The most common
fasteners recommended by the experts are copper/bronze screws or rivets.
Though googling quite extensively I have not found yet a source for small
copper/bronze screws. Machining a couple of dozens does not seem to be a
fun job, though I have mastered the "art" of turning copper (This may be my
subconscious reason to favour copper bushings...). Riveting is another of
these lost art forms, at least I never managed to make nice heads on both
sides. Recently we discovered copper "split rivets" at an ACE hardware
store. I wonder if these are suitable for the job and if someone has given
them a try.
See e.g. 
http://www.rivetsinstock.com/rivet25.htm
Regards
Henner