Side rail end connection system for bed frame

A system for connecting side rails of a bed frame with a headboard and/or footboard. A hook plate is affixed to the side rails and has a pair of hooks extending outwardly from the ends of the side rails. The hooks form slots in the hook plates and the slots have forward edges formed at a predetermined angle with respect to the vertical. A receiver housing is affixed to the headboard and/or footboard and has a vertical opening with a pair of transverse pins that span that opening. The side rails are affixed to the headboard and/or footboard by inserting the hooks into the vertical opening to engage the pins. A lever arm, pivotally affixed to the receiver housing, can be pivoted to force the hook plate downwardly to forcefully engage and lock the forward edge of the slots with the pins.