The rivets used to hold the threaded plate for the plastic tank hold down are no longer available from Porsche (999.190.102.02). I know from the parts book they are 4mm in diameter. I have confirmed this by measuring the holes in the plate and the chassis. I am estimating the grip length at 8mm-9.5mm. I should be able to find a suitable substitute but I don't know what the original material was. Were they made of aluminium or steel? And/or does anyone know of a source?
BillM