Steel square pole mounting side tenon for concrete, steel and wood pole mounting of street and area lighting fixtures. LED and traditional fixtures can be utilized that slip fit onto the bracket. Available in hot dip galvanized, dark bronze, black, grey, white or natural aluminum finishes.Available in several lengths and widths, in 1-1/4″ pipe sizes. Minimum 4″ flat mounting space. 9/16″ diameter mounting holes with 5-5/8″ spacing between holes. Mounting hardware not included. ST1, ST-1, ST2, ST-2.