ATV Lug Nut Sizes Explained. Nominal Diameter: The nominal diameter is the inside diameter of the threaded part of the nut. Common sizes in ATVs are M10 and M12, where the number indicates the bolt diameter in millimeters.

Simply find your make/model/year of ATV in the list below to find out which bolt pattern to order. Or you can follow the diagram below that shows you how to measure your own. We have also created a very simple video showing you how to measure your own ATV Bolt Pattern.

ATV tire explaination: ATV tires are listed in a set of three numbers, generally separated by dashes (25-10-12), or by an 'x' (25x10x12) or a combination of the two: 1st Number = The overall tire height when inflated (Ex. 25x10-12 is 25" tall).

In this guide, we’ve gathered everything you need to know about ATV wheel bolt and lug nut patterns, what they are, how to measure them, and some examples of the most common ATV bolt patterns. If you want to learn the difference between wheel bolts, lug nuts, and wheel studs and what size and shape you need, you should head to this post.