MSP-42 rivets should be doomed head steel rivets used to attach end to control rods. No countersinking.
"Aerodynamics is for people who can't build engines"
Cold Lake, Alberta
RV7A #70015 - C-FZQX - built - sold
RV7A #71629 - C-FSIS - built - sold across Atlantic
RV7 #70215 - C-GOJU - flying - sold
RV7 #70703 - C-GMIY - flying - sold
RV6 #60119 - C-FHBZ - built - Airventure 2016 Bronze Lindy - sold
RV10 #41779 - built emp - sold
RV8 #82842 - C-FSBG - Fastback with big hp IO-360-A1B6 10:1 - built - flying