Inner fender Mounting Grommets

[forestb]

I ordered a set of Inner fender Mounting Grommets (the rubber washer that goes on the hole in bottom rear inner fender where it bolts to the bracket that bolts to the cab) from Bowtie Bits. and they seem much smaller in diameter than the originals. Is this common? Do other companies sell the right size? They are much smaller than the mettle washer that goes around them.

Also when I took the original bolts out there is a mettle sleeve around the bolt. is that supposed to come off or is it part of the bolt?