Product review (5 stars): Why I bothered to write this review.
I buy a these 100 lots any time I need only one simply because I have a box where I keep them. These nuts are not grade 8 but they are really well finished and are so well done I often load one onto a screw drive blade and touch the place where they go and let them slide into place. They are so well done that that screwdriver blade will easily diddle them onto the threads and get you out of trouble in places you cannot get your hands or fingers into.  If you slip and drop the nut into where the original one went it is not a big deal as you have 99 more.
THE REASON YOU NEED JUST ONE is that you can't find the one you dropped or lost need to replace the one you buggered up.
The thing that people are really bad at is the study of history. If you look into the mind of one of the most brilliant military minds of the last 100 years you realize that General Patton was not a truly brilliant man but a man who studied the minds of others who were really great and those really bad over the last 10,000 years.  What Patton did was make sure he did not repeat bad mistakes of others and on the other side of the coin he made sure he took advantage of the brilliant minds of the winners.
 IF YOU MANAGED TO NEED ONE NUT FOR WHATEVER REASON THERE IS NO REASON TO THINK YOU ARE NOW WISER OR BETTER NOW THAN YOU WERE IN THAT EVENT.  I no longer waste time looking for the nut I absolutely have to have but just go to the box where I stashed the 99 back ups I will need.  Some fraction size nuts come in boxes of 10 pounds and I take advantage of that. in common fraction sizes where with all thread rod from the plumbing supply I make whatever length I need.
Having extra nuts you can make too long bolts shorter.  Simple fix  Nuts are cheap time and bolts are not;.