Wall Control's Metal Slotted Peg Board Hooks may be slightly loose upon arrival due to open stabilizing tab tolerances designed to accommodate all panel and hook finish thickness combinations. Simply put, a galvanized panel with behave differently compared to a white panel, since there is no paint on the galvanized pegboard. In the event one of your Accessories or Hooks is loose, please follow the below instructions to safely adjust your Stabilizing Tabs to your preference given your panel and hook finish thicknesses. Adjustment of your stabilizing tabs is not a necessity, it is purely based upon your preference.