Tools needed: What’s in the box: QTY 2—Vertical 10-32 Tapped Rails QTY 16—Tooth Washers QTY 2—L Bracket Bases QTY 8—9/16” Hex Nuts 9/16” Wrench QTY 8—9/16” Hex Bolts QTY 2—Upper Support Brackets Step 1 : Assemble the L Bracket Bases to the Vertical Rails as shown below. Do this for both sides. Grounding Studs: Note that there are 1/4-20 Grounding Studs on the top and bottom of each Vertical Rail. See placement below.