Bulkhead Rivets

[greencroft]

Hi I have a Compass Kensington 554 based on Elddis Avante. My problem is that the front bulkhead rivets have sheared off.
The rivets are on the side wall of the aluminium bracket. The other side of the bracket has self tapper screws and they are fine.
This is a common problem from what I've read.
My question is what do the rivets attach to and has anyone replaced them with new rivets or with self tappers?

 

[rich0805]

Mine had self tappers to begin with. When some of them fell out I replaced them with rivets. Some of those rivets sheared off so I have replaced them with larger diameter self tappers. I haven't used the van since doing that a few weeks ago, so can't comment on the effectiveness

 

[IanB1485]

the rivets shearing off suggests the front and side walls are flexing against each other which is worrying. Elddis tend to use split pop rivets as below

 

[greencroft]

Rich, what size screws have you used in your latest arrempt