Problem with pivot point

[Anonymous]

I want to animate the rotation of a screw but the pivot point is off...I've tried to center it and to use "D" to move the axis but it's never precise. How can I do...the video attached can help to understand my problem

[mspeer]

Duplicate:

https://forums.autodesk.com/t5/maya-forum/problem-with-pivot-point/td-p/8556237