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(3) Diameter of bolt
The tightening torque diff ers with the diameter of the
bolt. Generally a larger diameter bolt requires larger
tightening torque.
(4) Tightening conditions
The tightening torque diff ers according to the torque
ratio; class, and length of bolts even when bolts with
the same size threads are used. The tightening torque
also diff ers according to the condition of the surface of
workpiece through which the bolts are to be tightened.
When the bolt and nut turn together, torque is greatly
reduced.
(5) Tightening torque varies, depending on the battery’s
charge level.
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0000WH18DDXmetabo.indb150000WH18DDXmetabo.indb152020/05/2811:33:352020/05/2811:33:35
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