TIGHTENING TORQUES IN KILOGRAM METERS

GRADE

NOMINAL DIAMETER - REGULAR PITCH

M4

M5

M6

M7

M8

M10

M12

M14

M16

M18

M20

M22

M24

M27

M30

8.8

kpm

0.29

0.57

1

1.6

2.5

5

8

13

20

26

36

51

65

98

134

Pound-Feet

2

4

7

11

18

32

58

94

144

190

260

368

470

707

967

10.9

kpm

0.4

0.8

1.4

2.3

3.5

6

12

18

27

37

51

72

92

138

188

Pound-Feet

2.9

6

10

16

25

47

83

133

196

269

366

520

664

996

1357

12.9

kpm

0.5

1

1.6

2.7

4

8

14

22

33

45

61

87

110

167

226

Pound-Feet

3.6

7

11

20

29

58

100

159

235

323

440

628

794

1205

1630