An expandable collet anchor system for non-permanent attachment of a proximal panel to a distal panel comprising a collet body (20, 220), an auxiliary structure and a stud: the collet body (20, 220) defining a longitudinal axis and comprising a first end (30, 230) defining a generally circular opening; a first wall portion (32, 232) adjacent to the first end (30, 230), the first wall portion (32, 232) having an interior surface (22, 222), an exterior surface (24, 224), a progressing radial profile and defining at least two secondary slots (38, 238) extending longitudinally from the first end (30, 230) to thereby create at least two radially flexible fingers having a distal end at the first end (30, 230); a second end (60, 260) defining a generally circular opening; a second wall portion (62, 262) adjacent to the second end (60, 260), the second wall portion (62, 262) having an interior surface (22, 222), an exterior surface (24, 224) and a progressing radial profile; an annular protrusion extending (34, 234) from the first wall portion (32, 232) having a leading face (42, 242) and a trailing face (44, 244); and a collet body anti-rotation means (66, 266) engaging with the auxiliary structure in form of an insert sleeve comprising a cylinder with an upper lip; and the stud including a stud head and a body, the body sized to fit through the generally circular opening of the second end (60, 260) such that upon the application of torque, stud translates towards first end, thereby causing the radial expansion of the fingers, such that the collet body anti-rotation means (66, 266) prevents the collet body (20, 220) from rotating in response to the application of torque via the rotating stud such that upon the application of torque to the stud, collet body (20, 220) translates towards upper lip of insert sleeve until further rotation of stud will cause greater compression of these panels (72, 76). the collet body (20, 220) defining a longitudinal axis and comprising a first end (30, 230) defining a generally circular opening; a first wall portion (32, 232) adjacent to the first end (30, 230), the first wall portion (32, 232) having an interior surface (22, 222), an exterior surface (24, 224), a progressing radial profile and defining at least two secondary slots (38, 238) extending longitudinally from the first end (30, 230) to thereby create at least two radially flexible fingers having a distal end at the first end (30, 230); a second end (60, 260) defining a generally circular opening; a second wall portion (62, 262) adjacent to the second end (60, 260), the second wall portion (62, 262) having an interior surface (22, 222), an exterior surface (24, 224) and a progressing radial profile; an annular protrusion extending (34, 234) from the first wall portion (32, 232) having a leading face (42, 242) and a trailing face (44, 244); and a collet body anti-rotation means (66, 266) engaging with the auxiliary structure in form of an insert sleeve comprising a cylinder with an upper lip; and the stud including a stud head and a body, the body sized to fit through the generally circular opening of the second end (60, 260) such that upon the application of torque, stud translates towards first end, thereby causing the radial expansion of the fingers, such that the collet body anti-rotation means (66, 266) prevents the collet body (20, 220) from rotating in response to the application of torque via the rotating stud such that upon the application of torque to the stud, collet body (20, 220) translates towards upper lip of insert sleeve until further rotation of stud will cause greater compression of these panels (72, 76).