SPEC9-19GENERAL TORQUESPECIFICATIONSThis chart specifies torque for standard fastenerswith standard I.S.O. pitch threads. Torque specifica-tions for special components or assemblies are in-cluded in the applicable sections of this book. Toavoid warpage, tighten multi-fastener assemblies ina crisscross fashion, in progressive stages, until fulltorque is reached. Unless otherwise specified, torquespecifications call for clean, dry threads. Compo-nents should be at room temperature.General torquespecificationsNm m · kg ft · lbA(nut)B(bolt)4.311224061946153055851306 mm8 mm10 mm12 mm14 mm16 mm10 mm12 mm14 mm17 mm19 mm22 mm0.61.53.05.58.513.0A: Distance across flatsB: Outside thread diameterDEFINITION OF UNITSUnit Read Definition MeasurementmmcmkgNNmm · kgPaN/mmLcm3r/minMillimeterCentimeterKilogramNewtonNewton meterMeter kilogramPascalNewtons per millimeterLiterCubic centimeterRotations per minute10 -3 meter10 -2 meter10 3 gram1 kg × m/sec2N × mm × kgN/m 2N/mm——LengthLengthWeightForceTorqueTorquePressureSpring rateVolume or capacityEngine speedGENERAL TORQUE SPECIFICATIONS/DEFINITION OF UNITS
