Fitted mine a short while back using a calibrated torque wrench from work. The 35Nm felt to me as an aircraft technician very close to the limit of the setup. I was very carefull not to overtighten, turning very very slowly as the wrench indicated over 30Nm. Best advice I can give. Use a calibrated torque wrench if you can and don't tighten a fraction over the 35Nm. :driving: