I tried Lowes and the local fastener supply company...no luck. The guy at the fastener place suggested I go the the bicycle shop. So I go there and there is 2 pimple face teenagers working on high dollar road bikes. I ask them for axle nuts for a cruiser with 26" wheels. They look at me like I'm speaking french. All they have is high end road bikes and mountain bikes....they acted like they had never heard of a wheel that has an axle nut. :x
So I went home and tried the nuts off of the front of my late model Murray cruiser...they are the same so I guess I'm gonna order the 5/16-26 tpi nuts off of ebay.