Abstract: An anchor assembly is provided for downward reception in an upwardly opening stake receiving socket formed in the upper marginal edge portion of the wall of a pickup truck load bed. The anchor assembly includes a base plate for disposition within the upper portion of the load bed sidewalls socket and the upper end portion of a pair of depending arms are shiftably supported from opposite marginal edge portions of the base plate for oscillatory movement of the lower end portions of the arms toward and away from each other. The arms may closely oppose corresponding remote wall portions of the socket and an upright elongated fastener is threaded through a central portion of the base plate and includes a lower end portion disposed between the lower end portions of the arms and having an abutment carried thereon.