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FOREWORD
STANDARD TIGHTENING TORQUE
Standard Tightening Tables
For Bolts and Nuts
★ Unless there are special instructions, tighten metric nuts and bolts to the torque shown in this table.
★ The following table applies to the bolts in Figure A.
Thread Diameter
of Bolt
mm
6
8
10
12
14
16
18
20
22
24
27
30
33
36
39
★ Figure A
The widths across flats against the thread diameters of flanged bolts
(marks with "*") in Figure A are the ones indicated in the table for
bolts shown in Figure B.
Values of tightening torques shown in the table for Figure A are
applied.
00-32
c
Width across Flats
mm
10
13
17
19
22
24
27
30
32
36
41
46
50
55
60
STANDARD TIGHTENING TORQUE
Tightening Torque
N•m
11.8 – 14.7
27 – 34
59 – 74
98 – 123
157 – 196
245 – 309
343 – 427
490 – 608
662 – 829
824 – 1,030
1,180 – 1,470
1,520 – 1,910
1,960 – 2,450
2,450 – 3,040
2,890 – 3,630
kgm
1.2 – 1.5
2.8 – 3.5
6.0 – 7.5
10.0 – 12.5
16 – 20
116 – 145
25 – 31.5
181 – 228
35 – 43.5
253 – 315
50 – 62
361 – 448
67.5 – 84.5
488 – 611
84 – 105
608 – 760
120 – 150
870 – 1,044
155 – 195
1,121 – 1,409
200 – 250
1,446 – 1,807
250 – 310
1,807 – 2,242
295 – 370
2,132 – 2,677
00
00
00
lbf ft
9 – 11
20 – 25
44 – 55
72 – 91
WA250-6
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