Hi – can’t help you out with the sterling cable (but if you find
a source, I’d be interested as well). However, you can get
stainless cable down to about 1/16" (approx 1.5mm) at most marine
supply outlets, or by mail from West Marine, Defender, or Boat U.S.
I have the West catalog handy, and they list 1/16 7X19 stainless
wire rope at $.35 per foot. For smaller than that, fishing tackle
suppliers stock braided stainless leader wire in a variety of
sizes. Bead stringers suppliers also carry some small-diameter
I’ve had good success soldering stainless cable using either paste
or Battern’s fluxes and silver solder. You need to degrease the
cable first; I use either acetone or a canned spray degreaser
that’s mostly dry-cleaning fluid, whichever is closest to hand.
For terminations, a piece of silver or gold tube capped with sheet
at one end looks nice on heavy wire. For small-diameter wire, you
can loop the ends and crimp a small piece of tube over the doubled
section with pliers.