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FLAIL MOWER | User manual
February 2021
9.
BOLT TORQUE
The tables shown below give correct torque values for various bolts and cap screws. Tighten all bolts to the torques
specified unless otherwise noted. Check tightness of bolts periodically, using bolt torque chart as a guide. Replace
hardware with the same strength bolt.
Torque figures indicated above are valid for non-greased or non-oiled threads and heads otherwise specified.
Therefore, do not grease or oil bolts or cap screws unless otherwise specified in this manual. When using locking
elements, increase torque values by 5%.
ENGLISH TORQUE SPECIFICATIONS
SAE 2
SAE 5
SAE 8
Bolt Diameter
N.m
lb-ft
N.mt
lb-ft
N.m
lb-ft
1/4”
8
6
12
9
17
12
5/16”
13
10
25
19
36
27
3/8”
27
20
45
33
63
45
7/16”
41
30
72
53
100
75
1/2”
61
45
110
80
155
115
9/16”
95
60
155
115
200
165
5/8”
128
95
215
160
305
220
3/4”
225
165
390
290
540
400
7/8”
230
170
570
420
880
650
METRIC TORQUE SPECIFICATIONS
8.8
10.9
Bolt Diameter
N.m
lb-ft
N.m
lb-ft
M3
0.5
0.4
1.8
1.3
M4
3
2.2
4.5
3.3
M5
6
4
9
7
M6
10
7
15
11
M8
25
18
35
26
M10
50
37
70
52
M12
90
66
125
92
M14
140
103
200
148
M16
225
166
310
229
M20
435
321
610
450
M24
750
553
1050
744
M30
1495
1103
2100
1550
M36
2600
1917
3675
2710
