Stainless steel screws do not move
The position of the groove cross screwdriver to broken, look for a better grip vise, hard twist, should be able to twist off the;
Stainless steel will rust, although not very strong, you can spray a little rust remover to see if it will be better;
Several possible causes and countermeasures:1. may the glue used in the tightening of the time, so, you can try to use firearms to burn out, see no smoking;2., there is the thread has been damaged, embedded in aluminum, in this case, there is no good way, you can leverage the principle of lengthening the arm, find the extension with the steel pipe to try;
