B&P Lamp® Pack of Five 4 Inch Universal Cross Bar

B&P Lamp® Pack of Five 4 Inch Universal Cross Bar - 4" universal cross bar, slips 3/8IP, inside screw holes 2 3/4" C to C, outside screw holes 3 9/16" C to C, tapped 8/32, 8/32 ground hole (no screw inserted). 16 gauge steel, .065" thick.. Features Include: These universal crossbars measure 4" in diameter and come in a pack of five., Crossbars are designed to attach fixtures and canopies to electrical junction boxes., The center hole slips 3/8" IP which measures 5/8" diameter., The inside screw holes are 2 3/4" center to center and the outside screw holes are 3 9/16" center to center., Made of 16 gauge steel that is .065" thick and a ground screw hole that is tapped 8/32.