Step 4:
Attach 2 Cam Lock Screws (U1) to the Left Side Panel (N). Attach 2 Cam Lock Screws (U1) to the Right Side Panel
(O). Insert 4 Cam Lock Nuts (U2) under the Middle Panel (C). Attach the Middle Panel (C) to the Side Panels (N & O). Tighten
the Cam Lock Nuts (U2).
Step 5:
Slide the Upper Back Panel (B) into the Groove on the Left and Right Side Panels (N & O) and into the Middle Panel
(C). Push the Black Plastic Hole Cover (U3) into the hole on the Upper Back Panel (B) as shown below.