A clearance adjustment connector including a first wall and a movable connection board; wherein the board comprises at least one connection terminal configured to allow a connection with another connector; the clearance adjustment connector includes return means able to hold the board in an initial position relative to the first wall, when no force is applied to the board; the first wall and the board are configured to allow a displacement of the board from its initial position to a final position, the displacement including at least one sliding along a connection direction perpendicular to a plane of the first wall; and the return means allow said sliding of the board under the effect of a force applied to the board along the connection direction while tending to return the board to the initial position along a direction opposite to the connection direction if the board is spaced apart from its initial position; the clearance adjustment connector comprises at least one guide rod extending along the connection direction, and rigidly fixed to a first element among the first wall and the board; a second element among the first wall and the board includes at least one passage through which said at least one rod can slide; and said at least one rod and said at least one passage are arranged to guide the board during said displacement; said at least one guide rod includes a nut and a screw, configured to be screwed together; and the connector is configured so as to allow a relative translation of the board relative to the first wall in a plane perpendicular to the connection direction, characterized in that said first element and said at least one guide rod are arranged such that, when a first component which is either the nut or the screw is engaged with said first element in a position allowing the screwing of the nut on the screw, said first component is blocked in rotation around the connection direction. the board comprises at least one connection terminal configured to allow a connection with another connector; the clearance adjustment connector includes return means able to hold the board in an initial position relative to the first wall, when no force is applied to the board; the first wall and the board are configured to allow a displacement of the board from its initial position to a final position, the displacement including at least one sliding along a connection direction perpendicular to a plane of the first wall; and the return means allow said sliding of the board under the effect of a force applied to the board along the connection direction while tending to return the board to the initial position along a direction opposite to the connection direction if the board is spaced apart from its initial position; the clearance adjustment connector comprises at least one guide rod extending along the connection direction, and rigidly fixed to a first element among the first wall and the board; a second element among the first wall and the board includes at least one passage through which said at least one rod can slide; and said at least one rod and said at least one passage are arranged to guide the board during said displacement; said at least one guide rod includes a nut and a screw, configured to be screwed together; and the connector is configured so as to allow a relative translation of the board relative to the first wall in a plane perpendicular to the connection direction, characterized in that said first element and said at least one guide rod are arranged such that, when a first component which is either the nut or the screw is engaged with said first element in a position allowing the screwing of the nut on the screw, said first component is blocked in rotation around the connection direction.