Bolt tightening torque calculator
Size8.810.912.9
M55.98.610
M6101518
M8253643
M10497284
M1286125145
M14135200235
M16210310365
M18290405485
M20410580690
M22550780930
M2471010001200
M27105015001800
M30145020002400
Tightening torque
86 Nm
M12 · 8.8
Guide values at μ≈0.14 (lightly oiled). Dry threads need more, heavily lubricated less torque.
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