Review on Dorman 610 410 M12 1 50 Serrated Wheel by Ben Balas

The problem is that the description of the part is wrong. According to Dorman's website, it is actually a .508 (12.9mm) knurled front bolt for the Miata 90-05. I bought it for the back of my '94 Miata and it doesn't fit. Description is wrong. If you add a 10mm washer it looks like you only have 5 threads to hang with, 6 is considered the minimum so use caution as this can depend on wheel thickness.