i had new rubber put on the rear wheels today.the airlines at the tyre center were not working so they used there mobile van to supply the air.the wheel nuts were done up with the biggest t bar i have seen.when i got home i struggled to undo the wheel nuts,when i tightened the threads were stripped on two of the nuts.had to go to minor mainia to get some new ones.i have got a torque wrench can someone give me a sensibble setting thanks dale.