Now, does the expansion of the knob make the hole larger or smaller? My
instinct is that all dimensions get larger, hence the screw should be
looser. Or maybe the answer is some dry ice or liquid nitrogen. (That's
only half kidding).

Richard Knoppow
Los Angeles
WB6KBL


I think that since the metal shrinks when colder, an inside diameter will
get larger and an outside diameter will get smaller too. It's all
shrinking, not collapsing on itself.

Barry - N4BUQ