I think you have those mixed up - Toyota use 10mm for m6x1 fasteners, 12mm for m8x1.25, 14mm for m10x1.25, 17mm for m12x1.25, 22mm for m14x1.5 bolts and 24mm for the nuts
Working in the UK I see most metric sizes, most common everyday use ones being 8, 10, 12, 13, 14, 17, 19, 21, 22, 24, 27...