A docking system, configured to dock two opposed surfaces on different spacecraft and comprising a first guideless resilient androgynous serial port (GRASP) mechanism (100, 200, 300) and a second GRASP mechanism (100, 200, 300), each GRASP mechanism (100, 200, 300) being intended to be attached to one of the two opposed surfaces and configured to be docked to the other GRASP mechanism (100, 200, 300), each GRASP mechanism (100, 200, 300) comprising: • a base plate (105, 305) having an opening (125, 325) bored through, wherein the base plate (105, 305) has an outward facing connection surface (107, 307) intended to be docked to the other GRASP mechanism (100, 200, 300); • a two-piece housing unit secured to the base plate (105, 305) over the opening (125, 325), the two-piece housing unit defined by a lower housing and an upper housing, the lower housing includes a lip surrounding the opening (125, 325) and a ridge extending from the lip to a circular surface wall extending away from the base plate (105, 305), and a channel cut out is further defined along a portion of the circular surface wall; • a docking nut (150, 350) being positioned against the ridge and over the opening (125, 325), the docking nut (150, 350) having a threaded interior surface and either: an exterior lower ratchet toothed section rotatably situated within the circular surface wall of the lower housing and a pawl mechanism being positioned in the channel cut out and biased to engage the exterior lower ratchet toothed section to permit rotation of the docking nut (150, 350) in a single direction; or a rotational restriction mechanism being positioned against the docking nut within the circular surface wall to engage the docking nut (150, 350) and configured to permit rotation of the docking nut in a single direction; • a drive shaft and a docking screw threaded into the docking nut (150, 350), the docking screw having an interior channel keyed to receive the drive shaft; • a motor mechanism configured to rotate the docking screw via the drive shaft; and wherein the docking screw has a screw length configured to extend through the docking nut (150, 350) and through the base plate (105, 305) when the docking screw is in an extension position and wherein the docking nut (150, 350) has a nut length configured to define a receiving space below the docking screw when the docking screw is un-extended through the docking nut (150, 350) whereby the receiving space of the docking nut (150, 350) is further configured to receive a portion of a second docking screw having a screw length when docking the GRASP mechanism (100, 200, 300). • a base plate (105, 305) having an opening (125, 325) bored through, wherein the base plate (105, 305) has an outward facing connection surface (107, 307) intended to be docked to the other GRASP mechanism (100, 200, 300); • a two-piece housing unit secured to the base plate (105, 305) over the opening (125, 325), the two-piece housing unit defined by a lower housing and an upper housing, the lower housing includes a lip surrounding the opening (125, 325) and a ridge extending from the lip to a circular surface wall extending away from the base plate (105, 305), and a channel cut out is further defined along a portion of the circular surface wall; • a docking nut (150, 350) being positioned against the ridge and over the opening (125, 325), the docking nut (150, 350) having a threaded interior surface and either: an exterior lower ratchet toothed section rotatably situated within the circular surface wall of the lower housing and a pawl mechanism being positioned in the channel cut out and biased to engage the exterior lower ratchet toothed section to permit rotation of the docking nut (150, 350) in a single direction; or a rotational restriction mechanism being positioned against the docking nut within the circular surface wall to engage the docking nut (150, 350) and configured to permit rotation of the docking nut in a single direction; • a drive shaft and a docking screw threaded into the docking nut (150, 350), the docking screw having an interior channel keyed to receive the drive shaft; • a motor mechanism configured to rotate the docking screw via the drive shaft; and