Vertical grounding bus bar (GBB-series) is fabricated of solid copper for proper grounding of connected equipment. Series also functions as wire lacing bar with wide array of lacing slots and wire tie-down points to provide organized vertical wire management within rack or cabinet. Choose model GBB-36 (36"L) for use in racks with panel mounting space of 19-44U or model GBB-72 (72-inch L) for use in racks with panel mounting space of 44U or greater. Each bar features tapped holes (10-32) on EIA spacing along one side and has 0.312-inch holes and obrounds size 0.375" x 1.5" and 0.375" x 3" for installation to mounting rail supports (hat sections) on Lowell adjustable-rail racks. Screws (1/4-20x5/8"), insulation washers and slide nuts are included for installation.