the tubing 16 referring to fig3 the tieback 14 or the body 10 can further include a profile 36 designed to penetrate the opposing member at expansion the penetration is shown in fig4 the profile 36 can be a series of parallel rings a thread a regular or irregular pattern of projections and or depressions is can be on either member or on both and if on both the projection 36 on each member could be aligned or misaligned as shown in fig5 a thread 38 can be added to either body although shown on the tieback 14 a ring either whole or split or segments banded together 40 can be secured to thread 38 alternatively as shown in fig6 a surface roughness 42 can be created preferably of randomly positioned carbide particles or equivalent hard material that will preferably penetrate the opposing body in expansion the roughened surface can be on either body or both and if on both the sections treated can be in alignment or can be misaligned similarly the threaded ring 40 option shown in fig5 can be on one body or both although it is preferred to put it on the tieback 14 so as to avoid removing material from body 10 if the threaded ring.