Eurocode Calculations

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Bolts: Useful tables and data

Bolt size

Tension resistance [kN]

Shear resistance [kN]

Stress area, As [mm2]

M6

11.6

7.72

20.1

M8

21.1

14.1

36.6

M10

33.4

22.3

58

M12

48.6

32.4

84.3

M14

66.2

44.2

115

M16

90.4

60.3

157

M18

110.6

73.7

192

M20

141.1

94.1

245

M22

174.5

116.4

303

M24

203.3

135.6

353

M27

264.4

176.3

459

M30

323.1

215.4

561

M33

399.7

266.5

694

M36

470.5

470.5

817

M39

562.1

374.7

976

M42

645.1

430.1

1120

Normal tightening torque for galvanized bolt in class 8.8 in delivery condition. From "handbook for application of EN 1090-2" (swedish).

Dimension

Moment [Nm] with bolt in

in delivery condition

M12

55

M16

140

M20

270

M22

370

M24

470

M27

700

M30

900

M36

1600

Nominal clearence for bolts and pins [mm] acc. to EN 1090-2 table 11

Bolt dia [mm]

12

14

16

18

20

22

24

27 to 36

Normal hole

1

1

2

2

2

2

2

3

Oversize hole

3

3

4

4

4

4

6

8

Short hole slotted

4

4

6

6

6

6

8

10

Long slotted hole

1,5*d

1,5*d

1,5*d

1,5*d

1,5*d

1,5*d

1,5*d

1,5*d