Yes they need 10 nails or 6 staples and glue. The end nails go under the frame ear through the end bar and into the top bar. I helps you from prying the top bar out of the frame which really sucks when it is full of honey and or brood.I just painted my new hive, linseed oiled my dad's new hive (his preference), assembled most of my nucs (they are relatively square...) and started on the gazillion frames. (Do they really need 10 nails and glue? Where do the end nails go?)
Still reading and learning. Enrolled in a winter class, and the guy I am getting bees from is going to teach me to graft!
Stick it in a hive and let the glue it in place real good fill with honey then try to pry it out. I think you will lose the top bar and or the bottem bar when you pry the box off." Do they really need 10 nails and glue? Where do the end nails go?"
I questioned this too. In the past - with very different glue - I also used 10 nails.
Now I use an exceptional glue (Titebond III) and 4 nails. As an experiment I only glued a FS frame and gave it the stress test: It came apart at about 15 kg pull! I think the nails are simply there to make us feel good! The weight of a full frame of honey is less then 3 kg. I believe that glue and 4 nails ( or staples) is plenty.