u03b8 with respect to a radial plane through the thread according to the invention the threaded connection including the two step profile facilitates deep stabbing and ease of make up between the pin member 12 and the box member 11 providing the taper angles as illustrated by taper lines 30 and 31 enables the connection to have maximum thread and critical section areas allowing uniform reduction in section flexibility around the sealing regions and reduction of the relative step height s between the stepped thread regions the taper of the threads also allows for adjustment to tolerance variations in pipe outside diameter and inside diameter provided by tubular fabricators without weakening the connection the torque shoulders 16 and 17 are completely internal to the connection and create an essentially recess free bore to enhance fluid flow the torque shoulders serve as a positive stop and locking means as the pin and box members are assembled under torquing conditions the reverse angle of the torque shoulders serves to inhibit excessive hoop compressive forces from collapsing the end of the pin 12 the reverse shoulder angle also fixes the relation between the end of the pin and the interior end of the box the internal torque shoulder also creates axial compression along an axial region of the internal surface of the pin thereby reducing the susceptibility of the connection to stress corrosion cracking in a severe service environment the compressive force resulting from the reverse angle torque shoulder.