AGA marvel M24AR Installation, Operating And Maintenance Instructions page 16

Style 3 mounting method:
Fasten top of grille to enclosure with screw provided.
Cover screw head with snap-on cap. See Figure 18.
Cut custom facia panel and mount facia bracket per the
instructions on page 17. Install facia to grille back by
inserting shoulder rivets on back of facia bracket into large
ends of teardrop holes. When all 4 rivets are engaged in
the teardrop holes slide the facia downward until shoulder
rivets bottom out in small ends of teardrop holes.
INSTALLING THE GRILLE
screw-
-Snap
on cap
16
Figure 18