There are three common connection methods of reinforcing steel bar connection sleeve:

The one-way adjustable reinforcing steel bar connection sleeve means that the lower reinforcing steel bar and the connection sleeve, and the adjustable connector and the upper reinforcing steel bar are respectively tightened to the specified torque value with a torque wrench, and then the lock nut and the connection sleeve are tightened.

The two-way adjustable reinforcing steel bar sleeve means that the lower reinforcing steel bar and the adjustable connector, and the adjustable connector and the upper reinforcing steel bar are respectively tightened to the specified torque value with a torque wrench, and keep the number of exposed threads of the adjustable connector equal, and then clamp the upper and lower adjustable connectors respectively, and tighten the connection sleeve.

The same-diameter or different-diameter common reinforcing steel bar connection sleeve means that the lower reinforcing steel bar and the connection sleeve, and the connection sleeve and the upper reinforcing steel bar are respectively tightened to the specified torque with a torque wrench.