Proper mica insulator use

From: Veggie (vegan_at_nospam.net)
Date: 07/24/04 

Date: Sat, 24 Jul 2004 17:31:56 GMT

Sorry for the newbie question...

What is the right way to use a mica insulator on TO-220 parts? It seems
to me that the supplied metal screw and nut would defeat the purpose of
the mica, and conduct the TO-220 case to the heatsink.