Abstract: A thread form for a tubular connection of the type having a pin member adapted to be made up with a box member to form a pipe joint is shown. The pin member has pin threads with thread crests and thread roots which are adapted to be made up with a mating box member having a complimentary thread structure. The pin thread crests are formed between a stab flank and a load flank of the pin thread. The pin thread has a chevron-shaped load flank for engaging a mating chevron-shaped load flank of the complimentary box member to provide a chevron type interfit between the load bearing load flanks of the pin and box threads. The pin and box threads are also helically structured as a wedge. The chevron type interfit serves to limit the radial movement of the pin threads into the mating box member complimentary thread structure to control the radial make up of the pipe joint.

Abstract: A thread form is shown for a tubular connection of the type having a pin member adapted to be made up with a box member to form a pipe joint. The pin member has pin threads with thread crests and thread roots which are adapted to be made up with a mating box member having a complimentary thread structure. The pin thread crests are formed between a stab flank and a load flank of the pin thread. A pin thread has a chevron-shaped load flank for engaging a mating chevron-shaped load flank of the complimentary box member to provide a chevron type interfit between the load bearing flanks. The load flanks of the pin member includes an outer wall portion with a positive slope which provides additional clearance between the complimentary threads on the pin and box members during disassembly to prevent inadvertent hanging-up of the threads.