Made from 16 AWG Steel this shelf includes both 10-32 and 12-24 Phillips screws for ready mounting.Measurements are: 14" Depth, 19.25" Width, 3.5" Height.Can be used for flat surface orientation, enclosed border orientation, or wall mount orientation.Additional black 10/32 X 5/8 screws can be ordered here HW155-13-1032-KAdditional black 12/24 X 5/8 screws can be ordered here HW155-14-1224-KM6 X 16MM black screws can be ordered here HW155-60-M6-KNylon Trim Black Washers can be ordered here HW155-51-WASH-K10/32 Cage Nuts can be ordered here HW155-12-1032-KM6 Cage Nuts can be ordered here HW155-61-M6-K