First we need to set Final angle target( for example 20 degree) , it means when STw detected yield point and continue to tighten 20 degree. Second we need to set the limitation of this final angel . For example , the target is 20 degree ,but we think it is from 18 degree to 25 degree is acceptable . Then we set 18 as final angle min and 25 as final angle max . Stw use this parameter to judge whether the tightening is OK or NonOK . And give operator a alarm