Rear bumper bolt specs..

Hi everyone I want to reinstall the rear bumper on my Z.

It's been looking naked for a while now .

Anyway last time I was thinking about it, I couldn't get the bolts to fit from a bolt shop.

I need the 4 that go at the back and probably the ones for the side too.

Do the Microfiche CD have this information or just P/N's. Can someone give me the specs for them and does anyone know if there is a bit of rubber that wedges between the mounting brackets and the car just seems like the paint would get scratched up a bit.

Oh and anyone know where the best place is to get the bumper rubbers? In terms of OEM spec but no neccessarily have to be Nissan ones just a good set of Aftermarket ones at a good price?