INTRODUCTION
Torque - Minimum tightening torques for normal assembly
Use the torques in this chart when special torques are not given. These torques apply to plain and zinc-dichromate
fasteners as received from suppliers dry, or when lubricated with engine oil. Not applicable if special graphite lubri-
cants, Molydisulfide greases, or other extreme pressure lubricants are used. A torque range of ±
10%
is acceptable.
Grade 8.8 bolts, nuts, and studs
Size
Nm
lb ft
4 mm
4 N·m
3 lb ft
5 mm
7 N·m
5 lb ft
6 mm
12 N·m
9 lb ft
8 mm
29 N·m
21 lb ft
10 mm
57 N·m
42 lb ft
12 mm
100 N·m
74 lb ft
14 mm
159 N·m
117 lb ft
16 mm
248 N·m
183 lb ft
18 mm
352 N·m
260 lb ft
20 mm
500 N·m
369 lb ft
22 mm
681 N·m
502 lb ft
24 mm
865 N·m
638 lb ft
27 mm
1262 N·m
931 lb ft
30 mm
1719 N·m
1268 lb ft
36 mm
2999 N·m
2212 lb ft
Markings for Grade 8.8 hardware
Grade 10.9 bolts, nuts and studs
Size
Nm
lb ft
4 mm
5 N·m
4 lb ft
5 mm
10 N·m
7 lb ft
6 mm
17 N·m
13 lb ft
8 mm
41 N·m
31 lb ft
10 mm
82 N·m
60 lb ft
12 mm
143 N·m
105 lb ft
14 mm
227 N·m
168 lb ft
16 mm
354 N·m
261 lb ft
18 mm
487 N·m
359 lb ft
20 mm
690 N·m
509 lb ft
22 mm
942 N·m
695 lb ft
24 mm
1195 N·m
882 lb ft
27 mm
1749 N·m
1290 lb ft
30 mm
2377 N·m
1753 lb ft
36 mm
4149 N·m
3061 lb ft
Markings for Grade 10.9 hardware
48083741_EN 31/07/2018
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