Tightening Torques; General Use Screws, Bolts And Nuts; Stud Bolts - Kubota B2320 Workshop Manual
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Also See for B2320:
- Manual (24 pages) ,
- Installation & owner's manual (9 pages) ,
- Operator's manual (88 pages)
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B2320, B2620, B2920, WSM
5. TIGHTENING TORQUES
[1] 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 top of
bolt
Material of bolt
Material of opponent
Ordinariness
part
Unit
N·m
Diameter
7.85
M6
to
(6 mm, 0.24 in.)
9.31
17.7
M8
to
(8 mm, 0.31 in.)
20.5
39.3
M10
to
(10 mm, 0.39 in.)
45.1
62.8
M12
to
(12 mm, 0.47 in.)
72.5
108
M14
to
(14 mm, 0.55 in.)
125
167
M16
to
(16 mm, 0.63 in.)
191
246
M18
to
(18 mm, 0.71 in.)
284
334
M20
to
(20 mm, 0.79 in.)
392
[2] STUD BOLTS
Material of opponent
Ordinariness
part
Unit
N·m
Diameter
11.8
M8
to
(8 mm, 0.31 in.)
15.6
24.6
M10
to
(10 mm, 0.39 in.)
31.3
29.5
M12
to
(12 mm, 0.47 in.)
49.0
No-grade or 4T
SS400, S20C
Aluminum
kgf·m
lbf·ft
N·m
kgf·m
0.80
5.79
7.85
0.80
to
to
to
to
0.95
6.87
8.82
0.90
1.8
13.1
16.7
1.7
to
to
to
to
2.1
15.1
19.6
2.0
4.0
29.0
31.4
3.2
to
to
to
to
4.6
33.2
34.3
3.5
6.4
46.3
to
to
–
–
7.4
53.5
11.0
79.6
to
to
–
–
12.8
92.5
17.0
123
to
to
–
–
19.5
141
25.0
181
to
to
–
–
29.0
209
34.0
246
to
to
–
–
40.0
289
Aluminum
kgf·m
lbf·ft
N·m
kgf·m
1.2
8.68
8.82
0.90
to
to
to
to
1.6
11.5
11.8
1.2
2.5
18.1
19.7
2.0
to
to
to
to
3.2
23.1
25.4
2.6
3.0
21.7
to
to
31.4
3.2
5.0
36.1
S43C, S48C
Ordinariness
lbf·ft
N·m
kgf·m
lbf·ft
5.79
9.81
1.00
7.24
to
to
to
to
6.50
11.2
1.15
8.31
12.3
23.6
2.4
17.4
to
to
to
to
14.4
27.4
2.8
20.2
23.2
48.1
4.9
35.5
to
to
to
to
25.3
55.8
5.7
41.2
77.5
7.9
57.2
–
to
to
to
90.2
9.2
66.5
124
12.6
91.2
–
to
to
to
147
15.0
108
197
20.0
145
–
to
to
to
225
23.0
166
275
28.0
203
–
to
to
to
318
32.5
235
37.5
272
368
–
to
to
to
431
44.0
318
lbf·ft
6.51
to
8.67
14.5
to
18.8
23.1
G-11
G GENERAL
7T
SCr435,
SCM435
Aluminum
Ordinariness
N·m
kgf·m
lbf·ft
N·m
kgf·m
7.85
0.80
5.79
12.3
1.25
to
to
to
to
8.82
0.90
6.50
14.2
1.45
17.7
1.8
13.1
29.5
to
to
to
to
20.5
2.1
15.1
34.3
39.3
4.0
29.0
60.9
to
to
to
to
44.1
4.5
32.5
70.6
62.8
6.4
46.3
103
10.5
to
to
to
to
72.5
7.4
53.5
117
12.0
167
17.0
–
–
–
to
196
20.0
260
26.5
–
–
–
to
304
31.0
344
35.0
–
–
–
to
402
41.0
491
50.0
–
–
–
to
568
58.0
KiSC issued 05, 2011 A
9T
lbf·ft
9.05
to
to
10.4
3.0
21.7
to
to
3.5
25.3
6.2
44.9
to
to
7.2
52.0
76.0
to
to
86.8
123
to
to
144
192
to
to
224
254
to
to
296
362
to
to
419
W10345420
W10481390
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