New shorter screws with no washers (below) are 8-32 X 1/2" long 3 each required

 

The appearance is nice. I found that when installed the horn circuit was shorted to ground. I removed the wheel and disassembled the horn contact assembly to find the problem. The parts are stamped improperly so that the center hole is able to touch the center splined coupling resulting in a short circuit of 12 volts going directly to ground. By grinding the hole larger I was able to gain enough clearance to remove the problem. Also the lower contact ring is held in place by screws that were too long for the job. In order to use the screws the assembler installed large area washers. To avoid contact between the upper contact assembly and the washers the assembler used three lock washers to elevate the center contact portion so that it was not resting on the washers. I installed proper length screws to fix those problems.