I need to install a new flush mount chandelier weighing 5kg. It is replacing the existing oyster light. What kind of screws should I use to fix the cross bar bracket for the chandelier base. It comes with some screws but it doesn't look right for the plaster ceiling.( I am not sure). I am adding the provided screw picture and the product picture. It would be great if you could guide me through this. The electrician is installing it.
