Enclosure System Mounting Straps-Brackets: Type - Grid System Strap; Mounting Provisions - Alternating Square Hole and Round Hole Pattern; Fits Nominal Frame Depth - 600 mm; LxWxD - Metric - 423 mm (L); LxWxD - Imperial - 16.65 in. (L); Material - Steel; Material Finish - Galvanized; Manufacturer Series - HMEGS