Because the wall of my case is a bit thicker than the metal case, I was able to use a slightly longer thread length. The round screw on the mounting ring is aluminum and almost appears to be a mismatched thread, defeating any holding power on at least the first 1/16 inch of the thread. This element, most likely, will only work on thin-walled cases. Otherwise, the main body feels solid and well built. This is a signal cutting type. Two conductors. If the plug is not plugged in, the signal is passed to the third bar.
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