Grounding busbar, 19" (483mm) length, tin-plated, twenty holes arranged for flexibility in mounting with twenty #12-24 x 1/2" hex head screws installed, mounting hole sets have 5/8" (15.9mm) spacing, provided with two each #12-24 x 1/2", M6 x 12mm thread-forming screws, and two #12 flat washers for mounting.KEY FEATURES AND BENEFITS: • Provide the common grounding point within the cabinet• Optimized for installation on 19" racks or cabinets that meet EIA-310-D• Can be positioned anywhere on the rack or cabinet• Available pre-assembled with twenty mounting screws for quick and easy installation• Engineered to comply with US and International grounding requirements