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          Wofu common fastener installation pre-tightening force and tightening torque table

          May-05,2021 609

          Terms and acronyms:

          Fm: Installation pre-tightening force, unit KN

          Ma: The tightening torque of Fm pre-tightening bolts during installation, in Nm

          uG: the friction coefficient in the thread

          uK: Coefficient of friction in the bearing surface of the bolt head

          -Generally without special instructions, the friction coefficient is uG=uK=0.12


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