Question: are lug nuts all the same size?
Answer: Lug nuts (or lug bolts) have one of the most important jobs on a vehicle, to keep your wheels and tires secured to your vehicle. While there is no universal lug nut size, there are fortunately only about ten or so thread sizes and pitches that make up a lug nut's size. The most common lug nut sizes are: 10mm x 1.25.