Output screw and oscillating cylinder

The utility model relates to the technical field of oil cylinders, in particular to an output screw and a swing cylinder. The output screw comprises a screw body, the screw body is provided with a first end and a second end, and the outer diameter of the first end is larger than that of the second end; a plurality of screw holes and oil ports are distributed in the outer end face of the first end of the screw body, the screw holes are distributed in the circumferential direction, the oil ports are distributed in the inner peripheries of the screw holes, the oil ports and the screw holes are arranged in a staggered mode in the circumferential direction, the oil ports are communicated with internal oil channels, and the internal oil channels are communicated with the screw body. The internal oil channel extends to the inner end face side of the first end. With the axis of the output screw as the center, the maximum radial distance of the oil port deviating from the center is smaller than the minimum radial dist