Final torque is going to be higher than initial torque so any recheck reading you take isn't accurate unless you fully loosen the bolt and start over.

Starting friction is higher than running friction further clouding the readings. Also, if you tighten a bolt with a click type torque wrench, giving it another pull to hear a click does nothing beyond adding to torque wrench wear.

The goal of tightening bolts is to generate enough clamping force. Torque is an inference of clamping force. The problem with using torque in a critical application is thread and under head friction alters the torque needed to generate enough clamping force for a given torque reading.

Enter torque to yield bolts. These bolts are lightly torqued just to hold everything together then tightened until the bolt is stretched. ( think of the bolts as a large spring. ) The bolts are actually stretched to the point the metal yields and takes a permanent set. Once they bolts reach the yield point, they won't generate more clamping force no matter how much further you turn them.

You can feel the bolts yield as you are getting towards the last bit of rotation. The amount of rotation is speced to assure bolt yield is reached before you hit the final spec. Many times I'll do initial torque and first rotation then last rotation be feel.



Torque to yield bolts generally can be reused at least once and sometimes more than that. The factory , regardless of brand , generally recommends they be replaced after every use however, they are taking into account the show can't verify bolt usage and labor to clean / inspect bolts outweighs replacing them.




I'd retorque now. Completely loosen one at the center of head, then do a full torque sequence ( fully loose , initial torque , then rotation.) then continue through the pattern. Once this is complete, it will be just fine.