This ceiling plate is designed for attachment to standard Unistrut (1 5/8" x 1 5/8") or to a structural ceiling. Anchors for either application must be purchased separately. This Ceiling Plate is patible with Peerless Fixed Length and Adjustable Extension Columns. The maximum load is 113kg.Primary InformationColor : Black Features : UNISTRUT/STRUCTURAL CEILING PLATE Dimensions&MiscellaneousWidth : 8 Inch Length : 8 Inch UNSPSC CodeUNSPSC Code : 43212000