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Torque for settings of tightening tools, depending on the diameter of the screw

Diameter
of
screw
Height of thread
ISO mm
Diameter of
hexagonal
head
Torque in Nm for each class of steel
DIN 898/1
4,64,85,65,88,810,912,9
M 1,60,353,20,0680,0910,0850,1140,1830,2570,309
M 20,440,1380,1840,1720,2300,3680,5180,622
M 2,50,4550,2790,3720,3490,4650,7451,041,25
M 30,55,50,4780,6380,5980,7971,271,792,15
M 3,50,660,7380,9840,9231,231,962,763,32
M 40,771,101,471,371,832,944,134,96
M 50,882,142,852,683,575,718,049,65
M 61103,704,944,636,179,8813,9016,68
(M 7)1116,08,07,5010,0016,0022,5027,01
M 81,25138,8611,8111,0814,7723,6333,2439,88
M 101,51617,3923,1921,7428,9946,3865,2378,27
M 121,751829,6639,5437,0749,4379,09111133
(M 14)22147,1062,8058,8778,50125176211
M 1622472,5196,6890,64120193271326
M 182,527100134126168268378453
M 202,530141188176235377530636
M 222,534192256240320513722866
M 243362443263054076529171100
(M 27)34135547344459294713321599
M 303,546486648607810129618222187
M 333,5506538718171089174324512941
M 36455844112610561408225331683802
M 394601088145113611814290340834899
M 424,5651352180316902254360750726087
M 454,5701682224321032804448663097570
M 485752030270725383384541576159138
M 5258025973463324743296927974211690
Limit of elasticity Re (N/mm2)2403203004006409001080

1Mkg = 9,81 Nm (1 Mkg = 10 Nm)
1Nm = 0,102 Mkg (1Nm = 0,1 Mkg)

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