Quoted from provato:First of all, this plastic is screwed on the ramp with a sheet metal screw, not a machine screw + nut. Here is the assembly in the BOM parts list:
1719 .2 A-19051 plfd plastic assy-50031 1
1720 ..3 31-1925-32 plfd plastic-world cup 1
1721 ..3 03-8022-2 "spacer 1.062 L""" 1
1722 ..3 4106-01088-24 sms #6X1 1/2 sl-hwh 1
Second, you need a "magnet in a stick" to reach metal parts that have fallen in there. This is a MUST-HAVE tool!!! you don't want loose metal parts down your wire harness grounding stuff and blowing fuses!
Third, if you have a big hole in your ramp and want to reduce its diameter for the screw to be tight, there are a lot of ways you can do that. Others use the super-glue + baking soda trick, other use epoxy glue. I personally use a UV curing glue because it stays translucent when it cures and is very very hard. Just make sure you sand around the hole a bit before applying glue for better adhesion.
Lastly, YES, this plastic assembly serves a purpose: If you have an airball, the ball will land on it, and fall safely back on the ramp.
Interesting—It’s using the sheet metal screw, but you’re saying I shouldn’t have a nut at all?