Abstract: In one embodiment, an anti-rotation system includes a first tubular member having an extended thread and a torque shoulder, the first tubular member comprising a radial recessed area, the radial recessed area located axially between the external thread and the torque shoulder of the first tubular member. The system may further include a second tubular member comprising a radial recessed slot, the radial recessed slot located in the inner circumference of the second tubular member. The system may also include a pin toothed insert mechanically coupled to the first tubular member within the recessed area, the pin toothed insert comprising a first circumferential tooth pattern facing radially outward from the first tubular member. The system may also include a spring loaded, radial ratchet dog located within the radial recessed slot, the spring loaded radial ratchet dog comprising a second circumferential tooth pattern facing radially inward from the second tubular member.

Abstract: In one embodiment, an anti-rotation system includes a first tubular member having an extended thread and a torque shoulder, the first tubular member comprising a radial recessed area, the radial recessed area located axially between the external thread and the torque shoulder of the first tubular member. The system may further include a second tubular member comprising a radial recessed slot, the radial recessed slot located in the inner circumference of the second tubular member. The system may also include a pin toothed insert mechanically coupled to the first tubular member within the recessed area, the pin toothed insert comprising a first circumferential tooth pattern facing radially outward from the first tubular member. The system may also include a spring loaded, radial ratchet dog located within the radial recessed slot, the spring loaded radial ratchet dog comprising a second circumferential tooth pattern facing radially inward from the second tubular member.

Abstract: In accordance with embodiments of the present disclosure, a system includes a first tubular member having a first knurl surface and a second tubular member having a recessed slot located in the inner circumference of the second tubular member and a threaded hole from the external circumference of the second tubular member into the recessed slot. The system may further include an insert located within the recessed slot, the insert comprising a second knurl surface facing radially inward from the second tubular member and a set screw within the threaded hole of the second tubular member, the set screw having an unthreaded end mechanically coupled to the insert. The set screw rotatable to drive the second knurl surface of the insert into the first knurl surface of the first tubular member.