Removing front hub grease cap

[lesnyd@bb1t.monsanto.com (Larry E. Snyder lesnyd@monsanto.com 314-694-3626)]

I need to get at the front bearings on my GT6, and the Haynes manual says the
best way to remove the grease caps is to put a "#10 U.N.F. setscrew" into them
to drive them off. The book says that this setscrew comes in the toolkit
supplied with the car. 

I don't have an original toolkit, and what kind of thread would this have?
I'm sure it's not just a standard #10 bolt from the Ace hardware. Where can
I find an appropriate bolt to get my grease caps off?

Thanks,

Larry