Standard Tightening Torque; Standard Tightening Torque Of Bolts And Nuts - Komatsu WA470-6 Shop Manual

FOREWORD
12

STANDARD TIGHTENING TORQUE

STANDARD TIGHTENING TORQUE OF BOLTS AND NUTS

The following charts give the standard tightening torques of bolts and nuts. Exceptions are given in DISASSEMBLY AND
ASSEMBLY.
Thread diameter of bolt
mm
6
8
10
12
14
16
18
20
22
24
27
30
33
36
39
Thread diameter of bolt
mm
6
8
10
12
WA470-6, WA480-6
Width across flats
mm
10
13
17
19
22
24
27
30
32
36
41
46
50
55
60
Width across flats
mm
10
13
14
27
STANDARD TIGHTENING TORQUE
N•m
11.8 - 14.7
27 - 34
59 - 74
98 - 123
153 - 190
235 - 285
320 - 400
455 - 565
610 - 765
785 - 980
1150 - 1440
1520 - 1910
1960 - 2450
2450 - 3040
2890 - 3630
N•m
5.9 - 9.8
13.7 - 23.5
34.3 - 46.1
74.5 - 90.2
00
00
lbf ft
8.70 - 10.84
19.91 - 25.07
43.51 - 54.57
72.28 - 90.72
112.84 - 140.13
173.32 - 210.20
236.02 - 295.02
335.59 - 416.72
449.91 - 564.23
578.98 - 722.81
848.19 - 1062.09
1121.09 - 1408.74
1445.62 - 1807.02
1807.02 - 2242.19
2131.55 - 2677.35
lbf ft
4.35 - 7.22
10.10 - 17.33
25.29 - 34.00
54.94 - 66.52
00-31
b