Sprocket nut...

[TheGHunter]

Hi folks, savage knowledge on here hoping someone can help put my mind at ease or maybe tell me I've bought a horror show?


Just bought a 2003 Fazer 600 6 days ago - very pleased with it to say the least!


Pretty clean, lowish Kms (40k Kms).


Have done about 800k.s since then, long story boring - it has the old 9mm sprocket nut.


Have had it off just now to see what the thread is like - it appears good to me,doesn't appear to be damaged.


I have the appropriate nut on order (should be here Tuesday ?)


Question is - as I was putting the nut back on,nipped it up hand tight.
When I put the socket on it, tightens a tiny bit(with fuck all pressure) then goes loose...


Does this mean I'm in serious trouble or will the upgraded nut cure this/work and actually torque up?


The threads appear perfectly good both on the shaft and the nut itself.
When this goes bad,is it a case that the nut is gradually wearing the thread as it spins off or would it be noticeabley fucked?


As in, bare metal/wear marks where once there was thread - am I possibly ok seeing as the thread appears undamaged?


Any pointers,good or bad would be greatly appreciated,it's my only transport so need to get to the bottom of this ASAP!


Have a 200km round trip on Saturday and worried know I know about this, sometimes ignorance is bliss (rode home just over 200km at a fair clip - not a care in the world? nursing it the 25km round trip in an out of work now)

Don't suppose you have link handy for this replacement bolt. 
Thanks