KR> Nuts and bolts

[Pshows]

I am still going over a project that I purchased last year, taking things out 
that don't suit me and such.  So now I have a couple of questions.  The wheel 
attached to the landing gear main has four bolts with fiber lock nuts, is this 
acceptable?  There is carter pin hole in the bolt, nor safety wire hole in the 
nut.  Next, how do you clean the journals of the crank after nitriding?  I 
don't have a lathe so can't mount it and polish that way.
IHS
PatS
Seminary, MS