Bearing Lock Nuts on 5/8 in ballscrews

Hi folks...

I'm going to turn the ends of some Rockford 5/8 inch ballscrews and
I was wondering if anybody has experience with bearing lock nuts and
who could comment on a few questions. The lock nut will be used to
preload an angular contact bearing with a 12mm = 0.4724 inch inside
diameter that is mounted inside a bearing block. I've never used
ballscrews or bearing lock nuts so this is very new to me. I'm doing
this to the ends of 4 ballscrews. I'll be turning them as R-30 Type
C ends (http://www.rockfordballscrew.com/semchart.htm).

1) I noticed that McMaster-Carr (http://www.mcmaster.com) has
bearing lock nuts in 2 different sizes that would be reasonable for
a 5/8 in screw (.391"-32 and .469"-32 ). The bearing portion (non-
threaded portion) of the ballscrew shaft will be turned to 0.4724
inch to accept a 12mm ID angular contact bearing. So I guess I'm
thinking that the .469 – 32 TPI threads would be the best choice and
the bearing should slip over the threaded portion without trouble.
Does the .469 -32 lock nut sound like the most reasonable choice?
Yes/no?

2) I noticed that the McMastrer-Carr bearing lock nut indicates that
it is `self retaining' and I don't see any bearing lock nut washers
available for it. Other nuts I've seen seem to require special
washers. Is it true that that all I need is the lock nut itself and
that a washer would play no role in making sure it stays `locked'
Yes/no?

3) Do bearing lock nuts typically have special threads that require
a special die to cut them, or can I use my lathe to cut 32 TPI
threads with the compound rest set at 29.5 degrees? I'm assuming
this isn't a simple yes/no. Sorry.

4) Does anybody use a simpler less expensive approach to preloading
angular contact bearings on a shaft so that I don't have to purchase
special bearing lock nuts?

5) Can anybody suggest other/better lock nuts from other suppliers?

Sorry for the length of this folks…

Mike