Makita 6908D Instruction Manual page 10

Operation
The proper tightening torque may differ depending upon the kind or size
of
the screw/bolt,
the material
of
the workpiece to be tightened, etc. The relation between tightening torque
and tightening time is shown in the figures below.
Machine screw
Proper tightening torque for
M6 (1/4")
7
I
I
I
Seconds
0.5
1
.o
1.5
Tightening time
Standard bolt
kg
.
cm
(ft
.
IbS)
800
(57)
600
(43)
z
B
o)
400
E
F
.E
(29)
0 )
0)
200
(15)
0
M8 (5/16')
Proper tightening torque for MI0 (38")
Proper tightening torque for M8 (5/16")
1
.o
2.0 3.0
Tightening time
10