Size
(mm)		Typical Maximum Tightening Torque (Nm)
Property Class
Grade 8.8Grade 9.8Grade 10.9Grade 12.9
M5 7.0
5.17		 7.8
5.76		 10.0
7.38		 11.7
8.63
M6 11.8
8.71		 13.3
9.82		 17.0
12.5		 19.9
14.7
M8 28.8
21.3		 32.3
23.8		 41.3
30.5		 48.3
35.6
M10 57.3
42.3		 64.1
47.3		 81.8
60.4		 95.7
70.6
M12 99.8
73.7		 112
82.7		 143
106		 167
123
M16 248
183		 277
204		 354
261		 413
305
M20 500
369		 690
509		 809
597
M24 865
638		 1195
882		 1395
1030
M30 1719
1269		 2377
1754		 2774
2047