2-Post Server Rack with Sturdy Steel Construction and Casters - 42U 2 x Vertical Rails 2 x Angle Support Beams 2 x 2' Heavy-Duty Casters 2 x Bottom Supporting Beams 2 x Horizontal Rails 2 x 2' Heavy-Duty Locking Casters 16 x M6 Caster Screws 26 x M6 Nuts 30 x M6 Screws 32 x M6 Rack Screws with Plastic Washers 32 x M6 Cage Nuts 1 x Allen key 4mm 1 x Quick Install Guide