The Fastenal stores have a $10 minimum charge. I usually pick up fasteners and a few flap wheels for the 4 1/2" grinder and end up spending way more than that.
I will track down a supplier if your dealer cant help. I can stop by my local dealer here and check as well. I like the factory original fasteners as they have the tapered lead in which makes assembly easier for a guy working alone.
I got lucky that I had Flange Head bolts from another donor in near new condition - coated with plenty of oil and road grim. I replaced the prevailing torque lock nuts though. I got them from the local Dealer Parts counter in Green Bay. Did you check with your local brakes, suspension, and alignment shop, they may have fasteners on hand.
All lock nuts are generally a one-time use as they loose effectiveness once used. The Prevailing Torque nuts are also called top lock or side lock and are manufactured by hitting them with a press to distort the threads a known amount to provide a "prevailing torque" for retention.
The stock upper A-arm fasteners were held in place with a little spring loaded clip to make them act as a stud for easy assembly. I am using M12 x 50mm on mine.
The problems we face today can not be addressed at the same level of intelligence we were at when we created them - Albert Einstein Or with the same level of $ - Me
