Abstract: For use in adjustable cantilever rack systems having upright support columns connected to brackets having cantilever arms, a retaining means is provided for securing the bracket to a column member against accidental disconnection, said retaining means including a retaining pin arranged to fit within an aperture located substantially on the neutral axis of a load bearing surface of the column to restrict upward movement of the bracket relative to the column and prevent accidental disengagement caused by upwards, sideways or oblique torsional blows. The retaining pin can be resiliently biased by a flat spring to snap into place once the bracket and column are connected, and the retaining means can also be provided with a thumb latch to provide simple disengagement.

Abstract: For use in adjustable storage rack systems comprising individual load beams or skeleton shelves having brackets connecting with upright support columns, a locking means is provided for securing the bracket to the column against accidental disconnection. More specifically, where the connection between the bracket and the support column comprises a pin on the bracket which is engaged in a slot on the support column, the locking means is engaged on the pin and prevents removal of the pin from the slot, thereby preventing disconnection of the bracket from the support column.