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Tightening Torques; General Use Screws, Bolts And Nuts; Stud Bolts - Kubota B2301 Workshop Manual

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B2301, B2601, WSM

5. TIGHTENING TORQUES

Tighten screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual
according to the table below.

[1] GENERAL USE SCREWS, BOLTS AND NUTS

Indication on top of bolt
Indication on top of nut
Material of opponent part
Unit
M6
M8
M10
M12
M14
M16
M18
M20

[2] STUD BOLTS

Material of opponent part
Unit
M8
M10
M12
M14
M16
M18
No-grade or 4T
Ordinariness
Aluminum
N·m kgf·m lbf·ft
N·m kgf·m lbf·ft
7.9
0.80
5.8
7.9
0.80
to
to
to
to
to
9.3
0.95
6.8
8.8
0.90
18
1.8
13
17
1.7
to
to
to
to
to
20
2.1
15
19
2.0
40
4.0
29
32
3.2
to
to
to
to
to
45
4.6
33
34
3.5
63
6.4
47
to
to
to
–
–
72
7.4
53
108
11.0
79.6
to
to
to
–
–
125
12.8
92.5
167
17.0
123
to
to
to
–
–
191
19.5
141
246
25.0
181
to
to
to
–
–
284
29.0
209
334
34.0
246
to
to
to
–
–
392
40.0
289
Ordinariness
Aluminum
N·m kgf·m lbf·ft
N·m kgf·m lbf·ft
12
1.2
8.7
8.9
0.90
to
to
to
to
to
15
1.6
11
11
1.2
25
2.5
18
20
2.0
to
to
to
to
to
31
3.2
23
25
2.6
30
3.0
22
to
to
to
31
3.2
49
5.0
36
62
6.3
46
to
to
to
–
–
73
7.5
54
98.1
10.0
72.4
to
to
to
–
–
112
11.5
83.1
172
17.5
127
to
to
to
–
–
201
20.5
148
G-11
7T
No-grade or 4T
Ordinariness
Aluminum
N·m kgf·m lbf·ft
N·m kgf·m lbf·ft
5.8
9.81
1.00
7.24
7.9
to
to
to
to
to
6.5
11.2
1.15
8.31
8.8
13
24
2.4
18
18
to
to
to
to
to
14
27
2.8
20
20
24
48
4.9
36
40
to
to
to
to
to
25
55
5.7
41
44
78
7.9
58
63
–
to
to
to
to
90
9.2
66
72
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
368
37.5
272
–
to
to
to
–
431
44.0
318
6.5
to
8.6
15
to
18
23
–
–
–
GENERAL
WSM000001GEG0116US0
9T
6T
Ordinariness
N·m kgf·m lbf·ft
0.80
5.8
12.3
1.25
9.05
to
to
to
to
to
0.90
6.5
14.2
1.45
10.4
1.8
13
30
3.0
22
to
to
to
to
to
2.1
15
34
3.5
25
4.0
29
61
6.2
45
to
to
to
to
to
4.5
32
70
7.2
52
6.4
47
103
10.5
76.0
to
to
to
to
to
7.4
53
117
12.0
86.7
167
17.0
123
–
–
to
to
to
196
20.0
144
260
26.5
192
–
–
to
to
to
304
31.0
224
344
35.0
254
–
–
to
to
to
402
41.0
296
491
50.0
362
–
–
to
to
to
568
58.0
419
WSM000001GEG0117US0
WSM000001GEG0002US0
KiSC issued 11, 2014 A
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