The effortless 'push and go' feature allows installers to simply slide the threaded rod through the mounting hole where it instantly locks into place. Prefabricated components with threaded rods are easy to lift and insert, saving time and money. Various mounting holes allow the use of screws or anchor bolts for installation on concrete, wood and steel structures. The locking nut can be tightened with your finger to hold the threaded rod in place. Integrated adjustment nut allows precise height adjustment of the system. Particularly useful in tight spaces that are difficult to reach with a wrench. Conforms to Federal Specification WW-H-171 (Type 23) , Manufacturers Standardization Society ANSI®/MSS-SP-58 (Types 19 and 23) .