Yamaha F25A - General Tightening Torques

2-12
SPEC
E
TIGHTENING TORQUES
GENERAL TIGHTENING TORQUES
This chart specifies tightening torques for
standard fasteners with a standard ISO
thread pitch. Tightening torque specifica-
tions for special components or assemblies
are provided in applicable sections of this
manual. To avoid warpage, tighten multi-
fastener assemblies in a crisscross fashion
and progressive stages until the specified
tightening torque is reached. Unless other-
wise specified, tightening torque specifica-
tions require clean, dry threads.
Components should be at room tempera-
ture.
Nut (A) Bolt (B)
General torque
specifications
Nm m•kg ft•lb
8 mm M5 5.0 0.5 3.6
10 mm M6 8.0 0.8 5.8
12 mm M8 18 1.8 13
14 mm M10 36 3.6 25
17 mm M12 43 4.3 31