Standard bolt
N.m
(ft.lbs)
002349
High tensile bolt
002350
Hold the tool firmly and place the socket over the bolt or
nut. Turn the tool on and fasten for the proper fastening
time.
NOTE:
Hold the tool pointed straight at the bolt or nut.
•
Excessive fastening torque may damage the
•
bolt/nut or socket. Before starting your job, always
perform a test operation to determine the proper
fastening time for your bolt or nut.
The fastening torque is affected by a wide variety of
factors including the following. After fastening, always
check the torque with a torque wrench.
200
(144)
150
(108)
100
(72)
50
(36)
0
0.5
Fastening time
N.m
(ft.lbs)
300
(217)
250
(181)
200
(144)
150
(108)
100
(72)
M12X50 (7/16" X 2")
50
(36)
0
1
2
3
Fastening time
M20X50
(3/4" X 2")
M16X50
(5/8" X 2")
M12X50
(7/16" X 2")
1
M16X50 (5/8" X 2")
4
5
6
7
1.
Voltage
Voltage drop will cause a reduction in the fastening
torque.
2.
Socket
Failure to use the correct size socket will cause
•
a reduction in the fastening torque.
A worn socket (wear on the hex end or square
•
end) will cause a reduction in the fastening
torque.
3.
Bolt
Even though the torque coefficient and the
•
class of bolt are the same, the proper fastening
torque will differ according to the diameter of
bolt.
7
For 6905H
M20 (3/4")
M16 (5/8")
M12 (7/16")
1.5
(S)
For 6905H
M16 (5/8")
M12 (7/16")
8
(S)