Another thing to be concerned with in making these is the metal
itself....It should be made of a different alloy to get the
Depending on the metals used and the chemistry of the wearer, this
can cause problems with galvanic reaction.
I can’t count the times I had sore or raw earlobes as a young woman.
(I do not have a nickel allergy.)
For years I “solved” the problem by using sterling silver shepherd
hooks or gold posts with gold clutches. It wasn’t until years later
that I found the true cause was using earring backs (often nickel or
"stainless") that were of different metal than the posts and that the
naturally moist, salty environment of the skin completed the
requirements for a “battery”.
I believe that work-hardening the sheet for the clutch and
adjustment of the coils can create sufficient tension for the clutch.
I like to have a groove around the post for the clutch coils to
"snap" into for added security.