What is a good procedure for installing flap hinges?
Fat rivets.
Do the flap side first.
Squeeze some rivets so they fit snug in the flap brace and skin. Clamp the flap to the brace and skin. The fat rivets hold the parts together. Align as needed then drill every other hole. Cleko. Remove the fat rivets and drill. Done
whats a "fat Rivet"?Take the hing apart? Clamp it to the Flap and drill holes?