INTRODUCTION
Torque - Minimum tightening torques for normal assembly
C227
C232
L221
L228
METRIC NON-FLANGED HARDWARE
NOM.
SIZE
CLASS 8.8 BOLT and
CLASS 8 NUT
CLASS 10.9 BOLT and
CLASS 10 NUT
LOCKNUT
CL.8
W/CL8.8
BOLT
LOCKNUT
CL.10
W/CL10.9
BOLT
UNPLATED
PLATED
W/ZnCr
UNPLATED
PLATED
W/ZnCr
M4
2.2 N·m
(
19 lb
in
)
2.9 N·m
(
26 lb
in
)
3.2 N·m
(
28 lb
in
)
4.2 N·m
(
37 lb
in
)
2 N·m
(
18 lb in
)
2.9 N·m
(
26 lb
in
)
M5
4.5 N·m
(
40 lb
in
)
5.9 N·m
(
52 lb
in
)
6.4 N·m
(
57 lb
in
)
8.5 N·m
(
75 lb
in
)
4 N·m
(
36 lb in
)
5.8 N·m
(
51 lb
in
)
M6
7.5 N·m
(
66 lb
in
)
10 N·m
(
89 lb
in
)
11 N·m
(
96 lb
in
)
15 N·m
(
128 lb
in
)
6.8 N·m
(
60 lb
in
)
10 N·m
(
89 lb
in
)
M8
18 N·m
(
163 lb
in
)
25 N·m
(
217 lb
in
)
26 N·m
(
234 lb
in
)
35 N·m
(
311 lb
in
)
17 N·m
(
151 lb
in
)
24 N·m
(
212 lb
in
)
M10
37 N·m
(
27 lb ft
)
49 N·m
(
36 lb
ft
)
52 N·m
(
38 lb ft
)
70 N·m
(
51 lb
ft
)
33 N·m
(
25 lb
ft
)
48 N·m
(
35 lb
ft
)
M12
64 N·m
(
47 lb ft
)
85 N·m
(
63 lb
ft
)
91 N·m
(
67 lb ft
)
121 N·m
(
90 lb
ft
)
58 N·m
(
43 lb
ft
)
83 N·m
(
61 lb
ft
)
M16
158 N·m
(
116 lb
ft
)
210 N·m
(
155 lb ft
)
225 N·m
(
166 lb
ft
)
301 N·m
(
222 lb
ft
)
143 N·m
(
106 lb
ft
)
205 N·m
(
151 lb
ft
)
M20
319 N·m
(
235 lb
ft
)
425 N·m
(
313 lb ft
)
440 N·m
(
325 lb
ft
)
587 N·m
(
433 lb
ft
)
290 N·m
(
214 lb
ft
)
400 N·m
(
295 lb
ft
)
M24
551 N·m
(
410 lb
ft
)
735 N·m
(
500 lb ft
)
762 N·m
(
560 lb
ft
)
1016 N·m
(
750 lb ft
)
501 N·m
(
370 lb
ft
)
693 N·m
(
510 lb
ft
)
NOTE:
M4 through M8 hardware torque specifications are shown in pound-inches. M10 through M24 hardware torque
specifications are shown in pound-feet.
47851950 14/05/2015
12
Summary of Contents for 200 Series
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