US Patent 9688127 Vehicle accessory attachment system

A vehicle includes a truck bed side panel, a top cover, a clamp, and a plug. The truck bed side panel has a top defining a stake pocket and an overhang extending from the top. The top cover has an upper surface defining an aperture. The clamp is secured to the top cover and engages the overhang to secure the top cover to the top of the side panel. The plug is disposed within the stake pocket and aperture to prevent slippage of the top cover.