Norco Racks Components C-24U Item may ship in more than one box and may arrive separately Capacity: 24u Material: SPCC cold rolled steel Thickness: Mounting profile 0.08" (2.0mm), mounting angle 0.06" (1.5mm), others 0.05" (1.2mm) Surface Finish: Degreasing, pickling, phosphoric, powder coated Degree of Protection: IP20