On Tue, 14 Jun 2005 09:55:40 +0100, David Hearn
wrote:

How then are screw terminals acceptable?

A screw point is not terribly big, so I wouldn't expect it to remove a
significant amount of oxidation when screwed up

It's because they're not very big. Small area leads to a high pressure
and good gas-tight joints. However this also means poor mechanical
strength. A screw terminal with a separate slipper pad under the screw
terminal gives a better mechanical connection, but the pressure is low
and they're not gas tight. Take your pick.

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