<br><br> Olympic J9995Z is a shelf connector. <ul><b>Olympic J9995Z Features:</b> <li>Includes two &quot S&quot hook, screw and bolt <li>Designed as extra security for add on shelving units <li>Chromate finish</li> <li>S-hook goes over edge of supported shelf and under the edge of the add on shelf</li> <li>Can be used to join units at right angles, back-to-back or end-to-end <li>Two sets required for each connection</li> <li>Commercial Grade</li> <li>Industrial strength</li> </ul>