Abstract: A mounting apparatus for securing expansion cards includes an enclosure, a cover, a pressure member, a securing member secured to the pressure member, and a stopper piece. The enclosure includes a bottom plate, and a rear plate connected to the bottom plate. The pressure member is pivotably mounted to the rear plate. The rear plate includes a rear plate body, and a mounting portion mounted to the rear plate body. The stopper piece is mounted to the mounting portion. The pressure member presses the stopper piece when rotated toward the stopper piece. The cover is mounted to the enclosure to latching block the securing member to prevent the pressure member from rotating away from the stopper piece.

Abstract: A screw structure for securing a first object to a second object comprises a screw member, a blocking member and a pivot member. The screw member comprises a pole. The blocking member comprises a base portion secured to the pole, and two positioning portions are located on the base portion. The pivot member comprises two latching portions, and each of the two latching portions is engaged between the screw member and each of the two positioning portions. The pivot member is capable of rotation relative to the screw member and the blocking member.

Abstract: A screw structure for securing a first object to a second object comprises a screw member, a blocking member and a pivot member. The screw member comprises a pole. The blocking member comprises a base portion secured to the pole, and two positioning portions are located on the base portion. The pivot member comprises two latching portions, and each of the two latching portions is engaged between the screw member and each of the two positioning portions. The pivot member is capable of rotation relative to the screw member and the blocking member.