Craftsman variable speed grinder question

[stanratch]

Does anybody know the thread size of the arbor nuts?

Craftsman 8" Variable Speed Bench Grinder Model # 21162
https://www.sears.com/craftsman-professional-variable-speed-8inch-bench-grinder-21162/p-00921162000P

Thank you

 

[Stuart in MN]

The specs say it has a 5/8" arbor, but doesn't give the threads per inch. I tried looking it up on Sears Parts Direct; they do show the nut on the parts diagram (although oddly enough there's a different part number for the nut on each arbor) so you can buy one from them if you need it.

 

[dogdog]

I think one is a left hand threaded..

 

[stanratch]

Thanks guys I found a manual for Model #21162 and it shows a 5/8-11 nut.
Yes they have different numbers - for right and left hand thread