INTRODUCTION
Torques for four-bolt flange connections (Metric class 10.9)
Bolt
Length
Bolt
(SAE Code 61)
Torque
(SAE Code 61)
Bolt
(SAE Code 62)
Torque
(SAE Code 62)
13 mm
(
0.5 in
)
M8x1.25
34 N·m
(
25.1 lb ft
)
M8x1.25
34 N·m
(
25.1 lb ft
)
19 mm
(
0.75 in
)
M10x1.5
74 N·m
(
54.6 lb ft
)
M10x1.5
74 N·m
(
54.6 lb ft
)
25 mm
(
1.0 in
)
M10x1.5
74 N·m
(
54.6 lb ft
)
M12x1.75
137 N·m
(
101.0 lb ft
)
M12x1.75
137 N·m
(
101.0 lb ft
)
32 mm
(
1.25 in
)
M10x1.5
74 N·m
(
54.6 lb ft
)
M14x1.5
189 N·m
(
139.4 lb ft
)
38 mm
(
1.5 in
)
M12x1.75
137 N·m
(
101.0 lb ft
)
M16x2
310 N·m
(
228.6 lb ft
)
51 mm
(
2.0 in
)
M12x1.75
137 N·m
(
101.0 lb ft
)
M20x2.5
575 N·m
(
424.1 lb ft
)
64 mm
(
2.5 in
)
M12x1.75
137 N·m
(
101.0 lb ft
)
M24x3
575 N·m
(
424.1 lb ft
)
76 mm
(
3.0 in
)
M16x2
310 N·m
(
228.6 lb ft
)
M30x3.5
680 N·m
(
501.5 lb ft
)
89 mm
(
3.5 in
)
M16x2
310 N·m
(
228.6 lb ft
)
—
—
102 mm
(
4.0 in
)
M16x2
310 N·m
(
228.6 lb ft
)
—
—
127 mm
(
5.0 in
)
M16x2
310 N·m
(
228.6 lb ft
)
—
—
NOTE:
Final torque tol/–
10%
of the given torque specification.
Torques for four-bolt flange connections (Metric class 8.8)
Bolt
Length
Bolt
(SAE Code 61)
Torque
(SAE Code 61)
Bolt
(SAE Code 62)
Torque
(SAE Code 62)
13 mm
(
0.5 in
)
M8x1.25
29 N·m
(
21.4 lb ft
)
M8x1.25
29 N·m
(
21.4 lb ft
)
19 mm
(
0.75 in
)
M10x1.5
57 N·m
(
42.0 lb ft
)
M10x1.5
57 N·m
(
42.0 lb ft
)
25 mm
(
1.0 in
)
M10x1.5
57 N·m
(
42.0 lb ft
)
M12x1.75
100 N·m
(
73.8 lb ft
)
M12x1.75
100 N·m
(
73.8 lb ft
)
32 mm
(
1.25 in
)
M10x1.5
57 N·m
(
42.0 lb ft
)
M14x1.5
160 N·m
(
118.0 lb ft
)
38 mm
(
1.5 in
)
M12x1.75
100 N·m
(
73.8 lb ft
)
M16x2
250 N·m
(
184.4 lb ft
)
51 mm
(
2.0 in
)
M12x1.75
100 N·m
(
73.8 lb ft
)
M20x2.5
500 N·m
(
368.8 lb ft
)
64 mm
(
2.5 in
)
M12x1.75
100 N·m
(
73.8 lb ft
)
M24x3
575 N·m
(
424.1 lb ft
)
76 mm
(
3.0 in
)
M16x2
250 N·m
(
184.4 lb ft
)
M30x3.5
680 N·m
(
501.5 lb ft
)
89 mm
(
3.5 in
)
M16x2
250 N·m
(
184.4 lb ft
)
—
—
102 mm
(
4.0 in
)
M16x2
250 N·m
(
184.4 lb ft
)
—
—
127 mm
(
5.0 in
)
M16x2
250 N·m
(
184.4 lb ft
)
—
—
NOTE:
Final torque tol/–
10%
of the given torque specification.
48194558 20/10/2017
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