the end fittings 2 2 a for illustration purposes the threaded features 6 7 are shown with both the internal thread feature s 6 and the external thread features s 7 though any arrangement of threaded features 6 7 is anticipated and known in the prior art the structure member 3 is shown as a cylinder with a round cross section along the axis but any design and fabrication of cross sectional shape such as square rectangular and or i beam are known the mechanical property requirements of the structure member 3 dictate the design parameters of the structure member 3 to which as the compressive load requirements exerted in the axial longitudinal direction on the structure member 3 through the rod end s 2 2 a increases in value a comparative increase in the physical design parameters of the structure member 3 is required this increase in physical design parameters is usually manifested in an increase in the physical size of the structure member 3 relative to the rod end s 2 in order to increase the compressive load capability in the axial direction of the structure member 3 the outer dimensions of the structure member 3 is increased in the radial direction for the purpose of this disclosure this results in an increase in diameter of the structure member 3 in aerospace applications any such increase in required diameter because.