Darrell Feltmate wrote:

180* ? Usually if there are 2 set screws they are 90* apart. It allows a
lock with two different directions of pressure. I am not sure ofthe benefit
but this is just observation on my part anyhow.

Well, I've been known to have a faulty memory :-). I'll check when the
temperature gets out of the single digits so I can afford to heat the
shop :-).

--
It's turtles, all the way down