It turns out that the use of left-handed thread is not as uncommon as I once thought. Unfortunately, finding replacement left-handed nuts, bolts and screws isn't easy.
A while back, I damaged the thread on a left-handed nut that was meant to secure a radiator fan on my Chevy. The nut was unusable. No mechanic or dealer had a replacement in stock.
I had to get creative in order to reinstall the fan, so I cut regular right-handed thread onto the fan motor shaft with a die, dabbed on some red Loctite, secured the fan with a regular nut and called it a day.
For a part as simple as a nut, it makes little economic sense to purchase a specialist tap-and-die set designed to cut left-handed thread. It doesn't help that any left-handed fastener is extremely difficult to source.
So what other tricks or workarounds could a person without access to a specialist tap-and-die set utilize in order to overcome the absence of left-handed fasteners?