ABSTRACT
Forboltedjointswheresafetyandreliableperformancearedependentonproperinitial tension,bothtorqueandangleofturnmustbemonitoredandcontrolledduringthetightening process.Aseachfastenerisinstalled,thetorque-angletighteningsignatureoftheboltedjoint shouldbecomparedtoestablishedassemblyprocesslimitstoensurethatthespecifiedassembly preloadhasbeenachieved.