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RCK54-75B' RCK54/60-24B' RCK60/RC72-27B WSM, 17031
GENERAL
[4] TIGHTENING TORQUES (General Use Screws, Bolts and Nuts)
Screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual should be tightened
according to the table below.
Indication on
0 0
No-grade or 4T
(j)
7T
®
9T
top of bolt
Material of bolt
SS400,S20C
S43C,S48C
SCr435,
SCM435
Material of
Ordinariness
Aluminum
Ordinariness
Aluminum
Ordinariness
opponent part
~
N·m
kg/·m
ft-Ibs
N·m
kg/·m
ft-Ibs
N·m
kg/·m
ft-Ibs
N·m
kg/·m
ft-Ibs
N·m
kg/·m
ft-Ibs
Diameter
M6
7.85
0.80
5.79
7.85
0.80
5.79
9.81
1.00
7.24
7.85
0.80
5.79
12.3
1.25
9.05
(6 mm, 0.24 in.)
to
to
to
to
to
to
to
to
to
to
to
to
to
to
to
9.31
0.95
6.87
8.82
0.90
6.50
11.2
1.15
8.31
8.82
0.90
6.50
14.2
1.45
10.4
M8
17.7
1.8
13.1
16.7
1.7
12.3
23.6
2.4
17.4
17.7
1.8
13.1
29.5
3.0
21.7
(8 mm, 0.31 in.)
to
to
to
to
to
to
to
to
to
to
to
to
to
to
to
20.5
2.1
15.1
19.6
2.0
14.4
27.4
2.8
20.2
20.5
2.1
15.1
34.3
3.5
25.3
M10
39.3
4.0
29.0
31.4
3.2
23.2
48.1
4.9
35.5
39.3
4.0
29.0
60.9
6.2
44.9
(10 mm, 0.39 in.)
to
to
to
to
to
to
to
to
to
to
to
to
to
to
to
45.1
4.6
33.2
34.3
3.5
25.3
55.8
5.7
41.2
44.1
4.5
32.5
70.6
7.2
52.0
M12
62.8
6.4
46.3
77.5
7.9
57.2
62.8
6.4
46.3
103
10.5
76.0
to
to
to
I
I
I
to
to
to
to
to
to
to
to
to
(12 mm, 0.47 in.)
72.5
7.4
53.5
90.2
9.2
66.5
72.5
7.4
53.5
117
12.0
86.7
M14
108
11.0
79.6
I I I
124
12.6
91.2
167
17.0
123
to
to
to
to
to
to
I I
I
to
to
to
(14 mm, 0.55 in.)
125
12.8
92.5
147
15.0
108
196
20.0
144
M16
167
17.0
123
I I I
197
20.0
145
I I I
260
26.5
192
(16 mm, 0.63 in.)
to
to
to
to
to
to
to
to
to
191
19.5
141
225
23.0
166
304
31.0
224
M18
246
25.0
181
I I I
275
28.0
203
I I I
344
35.0
254
(18 mm, 0.71 in.)
to
to
to
to
to
to
to
to
to
284
29.0
209
318
32.5
235
402
41.0
296
M20
334
34.0
246
II
I
II
368
37.5
272
I
II II
491
50.0
362
(20 mm, 0.79 in.)
to
to
to
to
to
to
to
to
to
392
40.0
289
431
44.0
318
568
58.0
419
11790G00761
American standard cap screw with UNC or UNF threads.
\Grade
SAE GR.5
SAE GR.8
Unit \
0
@
Nominal\
Diameter
N·m
kgf·m
ft-Ibs
N·m
kgf·m
ft-Ibs
5/16
23.1 to 27.8
2.35 to 2.84
17.0 to 20.5
32.5 to 39.3
3.31 to 4.01
24.0 to 29.0
3/8
47.5 to 57.0
4.84 to 5.82
35.0 to 42.0
61.0 to 73.2
6.22 to 7.47
45.0 to 54.0
1/2
108.5 to 130.2
11.07 to 13.29
80.0 to 96.0
149.2 to 179.0
15.22 to 18.27
110.0 to 132.0
9/16
149.2 to 179.0
15.22 to 18.27
110.0 to 132.0
217.0 to 260.4
22.14 to 26.57
160.0 to 192.0
5/8
203.4 to 244.1
20.75 to 24.91
150.0 to 180.0
298.3 to 358.0
30.44 to 36.53
220.0 to 264.0
17060G00260
G-3
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