Don't bother trying to clean up your old
Nut, just buy a new one!
It will look better and save you time messing around, when you could be doing something more worthwhile, like checking out the online Product Gallery for your model!
You can see other items that you need to order but may have overlooked!
Some other nuts you may wish to consider:
083161006A
0831610087
083161008A
0831610107
The more comprehensive your order, the better value for you in reduced shipping costs, when divided over the number and value of your order. Please make sure the parts you order are compatible with your model.