Unique shouldered screw that keeps your switch in perfect alignment, using incorrect screws will damage the switch.
Fixed columns require 3 screws.
Tilt columns require 2 screws.
*NOTE* Need help diagnosing a Cougar turn signal problem? Victor Yarberry is the world’s most knowledgeable expert on the subject. Vic has owned Cougars since the 1970's and is the designer of all of our solid state sequential systems. There is no question he cannot answer! Here is a link to a great source of information on the subject.