We have completed a trial of 669AQ007 to try and check the movement when riveted
We forced rotation of the 669PD013 LHS anticlockwise and the 669PD013R clockwise when riveting
We only found an error of about 0.2mm which is acceptable for this application
I cut a bracket through the rivet, it shows that the rivet fills the hole as it swells to make it tight as it is riveted
Could you perhaps try to measure the same and see if the result is similar with production equipment