ADVANCED SIMRACING Advanced 4th monitor mount add-on Assembly And User's Manual page 8

4.
Slide the assembled corner plates on the 18" extrusion as shown. Repeat for
both 18" extrusions. Tighten no more than hand tight and set aside.
2X
5.
Prepare 4 corner gussets with the following twist : Using the flathead
screwdriver, slide the flathead under the small tab on the bottom, and pry out
the tab. It will snap at the base. Snap off both tabs on one side.
6.
Prepare the snapped gussets with
4X
2X M8 T-Nut and 2X M8 X 16 socket
screw each.
4