Here's your part guild. Number 12 is the grommet that holds the side cover on.
http://partsfinder.onlinemicrofiche....D--JIFFY-STAND

Here's a 1999 Road Glide: http://partsfinder.onlinemicrofiche....OAD-GLIDEŽ-(FP)

 

What you talkin about willis?

 

I have seen that diagram.
It does not show the part that fits into the grommet.
Its a metal plug that screws intot he side cover

 

Do you have any pics?

 

The studs that hold the side covers on and go into the rubber grommets are a molded stud that is part of the side cover. Again I say what you talkin about willis?

 

Not molded into it in 1999

 

Willis is apparently right:



At some point the molded-in plastic "stud" that most of us are familiar with were once screwed in bolts or studs as shown in this picture.

As for part number or source this all I can find.

Happy Hunting OP.