Daewoo ST Series Instrukcje Operacyjne Pobierz pdf (Strona 178)

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Tightening torque table for standard bolt

Refer to the following table for bolts other than described above.

Others : 1. The above torque rating have been determined to 70% or so of the limit value for bolt

elasticity.

2. Tension is calculated by multiplying tensile strength by cross section of thread.

3. Special screws should be tightened to 85% or so of the standard value.

For example, a screw coated with MoS2 should be tightened to 60% or so of the

standard value.

- 175 -

Degree of strength

3.6 4.6 4.8 5.6 5.8 6.6 6.8 6.9 8.8 10.9 12.9

(4A) (4D) (4S) (5D) (5S) (6D) (6S) (6G) (8G) (10K) (12K)

Limit value for elasticity (kg/mm

)

20 24 32 30 40 36 48 54 64 90 108

Tightening torque (kg•m)

M5 0.15 0.16 0.25 0.22 0.31 0.28 0.43 0.48 0.50 0.75 0.90

M6 0.28 0.30 0.45 0.40 0.55 0.47 0.77 0.85 0.90 1.25 0.5

M7 0.43 0.46 0.70 0.63 0.83 0.78 1.20 1.30 1.40 1.95 2.35

M8 0.70 0.75 1.10 1.00 1.40 1.25 1.90 2.10 2.20 3.10 3.80

1 0.73 0.80 1.20 1.10 1.50 1.34 2.10 2.30 2.40 3.35 4.10

M10 1.35 1.40 2.20 1.90 2.70 2.35 3.70 4.20 4.40 6.20 7.40

M10

1 1.50 1.60 2.50 2.10 3.10 2.80 4.30 4.90 5.00 7.00 8.40

M12 2.40 2.50 3.70 3.30 4.70 4.20 6.30 7.20 7.50 10.50 12.50

M12

1.5 2.55 2.70 4.00 3.50 5.00 4.60 6.80 7.70 8.00 11.20 13.40

M14 3.70 3.90 6.00 5.20 7.50 7.00 10.00 11.50 12.00 17.00 20.00

M14

1.5 4.10 4.30 6.60 5.70 8.30 7.50 11.10 12.50 13.00 18.50 22.00

M16 5.60 6.00 9.00 8.00 11.50 10.50 17.90 18.50 18.00 26.00 31.00

1.5 6.20 6.50 9.70 8.60 12.50 11.30 17.00 19.50 20.00 28.00 33.00

M18 7.80 8.30 12.50 11.00 16.00 14.50 21.00 24.20 25.00 36.00 43.00

M18

1.5 9.10 9.50 14.50 12.50 18.50 16.70 24.50 27.50 28.00 41.00 49.00

M20 11.50 12.00 18.00 16.00 22.00 19.00 31.50 35.00 36.00 51.00 60.00

M20

1.5 12.80 13.50 20.50 18.00 25.00 22.50 35.00 39.50 41.00 58.00 68.00

M22 15.50 16.00 24.50 21.00 30.00 26.00 42.00 46.00 49.00 67.00 75.00

M22

1.5 17.00 18.50 28.00 24.00 34.00 29.00 47.00 52.00 56.00 75.00 85.00

M24 20.50 21.50 33.00 27.00 40.00 34.00 55.00 58.00 63.00 82.00 92.00

M24

1.5 23.00 25.00 37.00 31.00 45.00 38.00 61.00 67.00 74.00 93.00 103.00

Diameter

pitch

(mm)

1 2 ... 173 174 175 176 177 178 179 180 181 182 183

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Daewoo ST Series Instrukcje Operacyjne Strona 178

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