Claas ROLLANT 250, Repair Manual

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298 332.0 - RHB ROLLANT 250 / 250 RC
1.4.1
Tightening torques
TIGHTENING TORQUES
Bolts
Tightening torques (in Nm) of hexagon bolts, cheese-head screws and hexagon nuts
Bolts and nuts blackened, phosphatised or galvanized
Strength class 8.8 10.9 12.9
Hexagon bolts
DIN 931
DIN 933
Cheese-head screws
DIN 912
Hexagon nuts
DIN 934
Dimensions Metric thread
M 4 2.7 3.8 4.6
M 5 5.5 8.0 9.5
M 6 10.0 14.0 16.0
M 8 23.0 33.0 40.0
M 10 45.0 63.0 75.0
M 12 78.0 110.0 130.0
M 14 122.0 175.0 210.0
M 16 195.0 270.0 325.0
M 18 260.0 370.0 440.0
M 20 370.0 525.0 630.0
M 22 510.0 720.0 870.0
M 24 640.0 900.0 1080.0
M 27 980.0 1400.0 1650.0
M 30 1260.0 1800.0 2160.0
Dimensions Metric fine thread
Hexagon bolts
DIN 960
DIN 961
Hexagon nuts
DIN 934
M 8 x 1 25 35 42
M 10 x 1.25 48 67 80
M 12 x 1.25 88 125 150
M 12 x 1.5 82 113 140
M 14 x 1.5 135 190 225
M 16 x 1.5 210 290 345
M 18 x 1.5 300 415 505
M 20 x 1.5 415 585 700
M 22 x 1.5 560 785 945
M 24 x 2 720 1000 1200
M 27 x 2 1050 1500 1800
M 30 x 2 1450 2050 2500
CAUTION! Cadmium-plated and copper-plated bolts and nuts must be tightened with tightening torques 25%
below the specified values.