An expandable cable connector torque adapter comprising: a tubular element configured to fit detachably around a cable connector having a hexagonal nut, said tubular element having a front end that engages said hexagonal nut and that is flexible; a back end opposite to said front end; a longitudinal axis along a center of said tubular element, said longitudinal axis extending between said back end and said front end; three portions, wherein each portion of said three portions comprising an expandable inner surface; three recessed regions, wherein each recessed region is in a corresponding expandable inner surface of each of said three portions; is proximal to said front end; and is located and shaped to engage a corresponding corner of three non-adjacent corners of said hexagonal nut; and, three slots (111, 112, 113), wherein each slot of said three slots (111, 112, 113) begins at said front end; is parallel to said longitudinal axis; is radially opposite to one of said three recessed regions; is located between each of pair of said three portions; is located and shaped to engage a corresponding corner of three remaining corners of said hexagonal nut, wherein a vertex of said corresponding corner of said hexagonal nut lies within said slot (111, 112, 113); wherein said three portions are continuously radially connected at said back end; and wherein each portion of said plurality of portions is configured to bend radially away from said longitudinal axis when a force is applied to a region of said expandable inner surface of said portion, thereby expanding a width of each of said adjacent slots (111, 112, 113) at said front end to widen said three slots (111, 112, 113) from a first baseline width to an expanded width, and thereby increasing a diameter of said hexagonal nut that engages with said front end of said tubular element configured to allow said tubular element to accommodate hexagonal nuts of different sizes. a tubular element configured to fit detachably around a cable connector having a hexagonal nut, said tubular element having a front end that engages said hexagonal nut and that is flexible; a back end opposite to said front end; a longitudinal axis along a center of said tubular element, said longitudinal axis extending between said back end and said front end; three portions, wherein each portion of said three portions comprising an expandable inner surface; three recessed regions, wherein each recessed region is in a corresponding expandable inner surface of each of said three portions; is proximal to said front end; and is located and shaped to engage a corresponding corner of three non-adjacent corners of said hexagonal nut; and, three slots (111, 112, 113), wherein each slot of said three slots (111, 112, 113) begins at said front end; is parallel to said longitudinal axis; is radially opposite to one of said three recessed regions; is located between each of pair of said three portions; is located and shaped to engage a corresponding corner of three remaining corners of said hexagonal nut, wherein a vertex of said corresponding corner of said hexagonal nut lies within said slot (111, 112, 113); a front end that engages said hexagonal nut and that is flexible; a back end opposite to said front end; a longitudinal axis along a center of said tubular element, said longitudinal axis extending between said back end and said front end; three portions, wherein each portion of said three portions comprising an expandable inner surface; three recessed regions, wherein each recessed region is in a corresponding expandable inner surface of each of said three portions; is proximal to said front end; and is located and shaped to engage a corresponding corner of three non-adjacent corners of said hexagonal nut; and, is in a corresponding expandable inner surface of each of said three portions; is proximal to said front end; and is located and shaped to engage a corresponding corner of three non-adjacent corners of said hexagonal nut; and, three slots (111, 112, 113), wherein each slot of said three slots (111, 112, 113) begins at said front end; is parallel to said longitudinal axis; is radially opposite to one of said three recessed regions; is located between each of pair of said three portions; is located and shaped to engage a corresponding corner of three remaining corners of said hexagonal nut, wherein a vertex of said corresponding corner of said hexagonal nut lies within said slot (111, 112, 113); is parallel to said longitudinal axis; is radially opposite to one of said three recessed regions; is located between each of pair of said three portions; is located and shaped to engage a corresponding corner of three remaining corners of said hexagonal nut, wherein a vertex of said corresponding corner of said hexagonal nut lies within said slot (111, 112, 113); wherein said three portions are continuously radially connected at said back end; and wherein each portion of said plurality of portions is configured to bend radially away from said longitudinal axis when a force is applied to a region of said expandable inner surface of said portion, thereby expanding a width of each of said adjacent slots (111, 112, 113) at said front end to widen said three slots (111, 112, 113) from a first baseline width to an expanded width, and thereby increasing a diameter of said hexagonal nut that engages with said front end of said tubular element configured to allow said tubular element to accommodate hexagonal nuts of different sizes.