GENERAL SPECIFICATIONS
2-21
GENERAL TIGHTENING TORQUE SPECIFICATIONS
This chart specifies tightening torques for standard fasteners with a standard ISO thread pitch.
Tightening torque specifications for special components or assemblies are provided for each chapter of
this manual. To avoid warpage, tighten multi-fastener assemblies in a crisscross pattern and progressive
stages until the specified tightening torque is reached. Unless otherwise specified, tightening torque
specifications require clean, dry threads. Components should be at room temperature.
A: Distance between flats
B: Outside thread diameter
General tightening torques A
(nut)
B
(bolt)
Nm m · kg ft · lb
10 mm 6 mm 6 0.6 4.3
12 mm 8 mm 15 1.5 11
14 mm 10 mm 30 3.0 22
17 mm 12 mm 55 5.5 40
19 mm 14 mm 85 8.5 61
22 mm 16 mm 130 13.0 94
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