Brought back four bolts and nuts from Franconia Hardware for a home project. A 5/8 inch wrench is too small and a 3/4 inch wrench is too big. Arrgh. Metric fasteners have infiltrated America. A warning of the decline and fall of practically everything. I go out to the car and open the the toolbox I keep in the trunk. Sure enough, a 17 mm wrench fits. Detroit converted to metric years ago and I now keep metric wrenches in the car tool box. Trusty old SAE fractional inch wrenches live in a box in my wood shop. Looks like I'll have to put them out to pasture and buy more metric wrenches or move the car tool box into the wood shop. It's a shame. I still have a set of SAE deep well sockets I purchased from Sears in 1965 to get the nuts off the leaf spring shackles of a '53 Chevy pickup truck. Breaks my heart to think they are obsolete after all these years.
May be I need to go out and get that 1959 Buick I always wanted to restore. Back then, Detroit cars didn't use metric fasteners. Only continental imports like VW were metric in the good old days.