Claas RU 450, Repair Handbook

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297 925.0 - RU 450
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General information
Torque settings (in Nm) of hexagon head bolts, cylinder head screws, and hexagon nuts
Screws and nuts blackened, phosphated, or galvanized
Property class 8.8 10.9 12.9
Hexagon head
screws
DIN 931
DIN 933
Cylinder head screws
DIN 912
Hexagon nuts
DIN 934
Size Standard 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
Size Metric fine-pitch thread
Hexagon head
screws
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
ATTENTION! Cadmium-plated or copper-plated screws and nuts are to be tightened with torque
that is 25% under the stated values.