Flap Rib attach angle

[X'N]

Looking at the drawings there are 4 rivets shown going thru the attach angle and spar, and 3 rivets shown on the rib to attach angle. I'm assuming that there should be 5 on the rib and guessing there should also be 5 on the spar?

I looked at a couple of quick build pictures people have posted and I can clearly see 5 rivets in the rib but no clear pictures of the spar.