And there is no instrument that can measure that static condition. That is why once fitted wheel nuts need re-torqued after a short period to ensure they remain stable. NTS actually give you a bit of a$re-covering paper to say they have done this. So if your wheels fall off they are covered. The point I was making was that connections have to be tight. A term widely used and understood by the OP, who unlike me is probably not in possession of a torque screwdriver and manufacturers tables of recommended torque settings.