Advanced design integrates internal replacement locking hook system with lightweight, low-profile and extremely durable steel crossbars. Internal hook/crossbar contacts prevent coating from interfering with grounding characteristics. Internal grounding design means crossbars require infrequent stripping. The flared outer edge crossbar design deflects coating from crossbar and incorporates internal hook contact points. Replacing and removing hooks is quick and easy. Our crossbar is also designed with closed ends to prevent coating from being drawn up inside the crossbar which often leads to grounding problems associated with inferior designs. Incorporated suspension holes are punched at 1” centers to provide unlimited suspension possibilities. Stocked in 30”, 40”, and 48” Lengths. Used with our spring steel TSR Hooks.TSR-BAR-No Ends - Made from 18 gauge steel with on center hook positions of 1”. Accepts hooks made from 0.031 to 0.076 wire spring steel. Bars are stocked in 30”, 40” and 48” lengths. Custom lengths available upon request.