GENERAL
BX1870,BX2370,BX2670,LA203A,LA243A,RCK48(P),RCK54(P),RCK60B,RCK60D,RCK54D, WSM
G-13
5. TIGHTENING TORQUES
[1] GENERAL USE SCREWS, BOLTS AND NUTS (TRACTOR AND
MOWER)
Tighten screws, bolts and nuts whose tightening torques are not specified in this Workshop Manual
according to the table below.
WSM000001GEG0001US0
Indication on top of bolt
No-grade or 4T 7T 9T
Indication on top of nut
No-grade or 4T
6T
Material of opponent part Ordinariness Aluminum Ordinariness Aluminum Ordinariness
Unit N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft N·m kgf·m lbf·ft
M6
7.9
to
9.3
0.80
to
0.95
5.8
to
6.8
7.9
to
8.8
0.80
to
0.90
5.8
to
6.5
9.81
to
11.2
1.00
to
1.15
7.24
to
8.31
7.9
to
8.8
0.80
to
0.90
5.8
to
6.5
12.3
to
14.2
1.25
to
1.45
9.05
to
10.4
M8
18
to
20
1.8
to
2.1
13
to
15
17
to
19
1.7
to
2.0
13
to
14
24
to
27
2.4
to
2.8
18
to
20
18
to
20
1.8
to
2.1
13
to
15
30
to
34
3.0
to
3.5
22
to
25
M10
40
to
45
4.0
to
4.6
29
to
33
32
to
34
3.2
to
3.5
24
to
25
48
to
55
4.9
to
5.7
36
to
41
40
to
44
4.0
to
4.5
29
to
32
61
to
70
6.2
to
7.2
45
to
52
M12
63
to
72
6.4
to
7.4
47
to
53
–––
78
to
90
7.9
to
9.2
58
to
66
63
to
72
6.4
to
7.4
47
to
53
103
to
117
10.5
to
12.0
76.0
to
86.7
M14
108
to
125
11.0
to
12.8
79.6
to
92.5
–––
124
to
147
12.6
to
15.0
91.2
to
108
–––
1
67
to
196
17.0
to
20.0
123
to
144
M16
167
to
191
17.0
to
19.5
123
to
141
–––
197
to
225
20.0
to
23.0
145
to
166
–––
260
to
30
4
26.5
to
31.0
192
to
224
M18
246
to
284
25.0
to
29.0
181
to
209
–––
275
to
318
28.0
to
32.5
203
to
235
–––
344
to
402
35.0
to
41.0
254
to
296
M20
334
to
392
34.0
to
40.0
246
to
289
–––
368
to
431
37.5
to
44.0
272
to
318
–––
491
to
568
50.0
to
58.0
362
to
419
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