INTRODUCTION
Torque - Standard torque data for hydraulics
NOTICE:
Hydraulic connections require a minimum assembly torque in order to provide zero leakage at rated pres-
sure with adequate fatigue resistance. Too much torque on a hydraulic connection can lead to leakage or failure.
NOTICE:
There are several different kinds of parallel thread ports, including those using metric threads, inch threads,
and British Standard Pipe Parallel (BSPP) threads. None of these port systems are interchangeable, and using the
wrong connector in a port will not provide an adequate seal, even if it is possible to install the part.
NOTE:
Hand install and hand tighten all connections before using tools to set the torque. This will reduce the possi-
bility of thread damage.
Torques for Metric O-Ring Boss (ORB) stud ends and port connections
S-Series (Heavy Duty)
L-Series (Light Duty)
Metric
Thread
Ferrous
Non-Ferrous
Ferrous
Non-Ferrous
M8x1
10.5 N·m
(
7.7 lb ft
)
6.3 N·m
(
4.6 lb ft
)
8.5 N·m
(
6.3 lb ft
)
5 N·m
(
3.7 lb ft
)
M10x1
21 N·m
(
15.5 lb ft
)
12.5 N·m
(
9.2 lb ft
)
15.5 N·m
(
11.4 lb ft
)
9.3 N·m
(
6.9 lb ft
)
M12x1.5
37 N·m
(
27.3 lb ft
)
22 N·m
(
16.2 lb ft
)
27 N·m
(
19.9 lb ft
)
16 N·m
(
11.8 lb ft
)
M14x1.5
47 N·m
(
34.7 lb ft
)
28 N·m
(
20.7 lb ft
)
37 N·m
(
27.3 lb ft
)
22 N·m
(
16.2 lb ft
)
M16x1.5
58 N·m
(
42.8 lb ft
)
35 N·m
(
25.8 lb ft
)
42 N·m
(
31.0 lb ft
)
25 N·m
(
18.4 lb ft
)
M18x1.5
74 N·m
(
54.6 lb ft
)
44 N·m
(
32.5 lb ft
)
47 N·m
(
34.7 lb ft
)
28 N·m
(
20.7 lb ft
)
M22x1.5
105 N·m
(
77.4 lb ft
)
63 N·m
(
46.5 lb ft
)
63 N·m
(
46.5 lb ft
)
38 N·m
(
28.0 lb ft
)
M27x2
178 N·m
(
131.3 lb ft
)
107 N·m
(
78.9 lb ft
)
105 N·m
(
77.4 lb ft
)
63 N·m
(
46.5 lb ft
)
M30x2
225 N·m
(
166.0 lb ft
)
135 N·m
(
99.6 lb ft
)
136 N·m
(
100.3 lb ft
)
82 N·m
(
60.5 lb ft
)
M33x2
325 N·m
(
239.7 lb ft
)
195 N·m
(
143.8 lb ft
)
168 N·m
(
123.9 lb ft
)
101 N·m
(
74.5 lb ft
)
M42x2
345 N·m
(
254.5 lb ft
)
207 N·m
(
152.7 lb ft
)
220 N·m
(
162.3 lb ft
)
132 N·m
(
97.4 lb ft
)
M48x2
440 N·m
(
324.5 lb ft
)
264 N·m
(
194.7 lb ft
)
273 N·m
(
201.4 lb ft
)
164 N·m
(
121.0 lb ft
)
M60x2
525 N·m
(
387.2 lb ft
)
315 N·m
(
232.3 lb ft
)
330 N·m
(
243.4 lb ft
)
198 N·m
(
146.0 lb ft
)
NOTE:
Final torque tol/–
10%
of the given torque specification.
Torques for Metric O-Ring Boss (ORB) port plugs
Ferrous
Metric
Thread
Internal Hex
External Hex
Non-Ferrous
M8x1
8.5 N·m
(
6.3 lb ft
)
10.5 N·m
(
7.7 lb ft
)
6.3 N·m
(
4.6 lb ft
)
M10x1
16 N·m
(
11.8 lb ft
)
21 N·m
(
15.5 lb ft
)
12.5 N·m
(
9.2 lb ft
)
M12x1.5
23 N·m
(
17.0 lb ft
)
37 N·m
(
27.3 lb ft
)
22 N·m
(
16.2 lb ft
)
M14x1.5
47 N·m
(
34.7 lb ft
)
28 N·m
(
20.7 lb ft
)
M16x1.5
58 N·m
(
42.8 lb ft
)
35 N·m
(
25.8 lb ft
)
M18x1.5
74 N·m
(
54.6 lb ft
)
44 N·m
(
32.5 lb ft
)
M22x1.5
105 N·m
(
77.4 lb ft
)
63 N·m
(
46.5 lb ft
)
M27x2
178 N·m
(
131.3 lb ft
)
107 N·m
(
78.9 lb ft
)
M30x2
225 N·m
(
166.0 lb ft
)
135 N·m
(
99.6 lb ft
)
M33x2
325 N·m
(
239.7 lb ft
)
195 N·m
(
143.8 lb ft
)
M42x2
345 N·m
(
254.5 lb ft
)
207 N·m
(
152.7 lb ft
)
M48x2
440 N·m
(
324.5 lb ft
)
264 N·m
(
194.7 lb ft
)
M60x2
525 N·m
(
387.2 lb ft
)
315 N·m
(
232.3 lb ft
)
NOTE:
Final torque tol/–
10%
of the given torque specification.
48194558 20/10/2017
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