Will these fit my wheel studs?

These are M12x1.5 metric fine-pitch nuts. Verify your vehicle uses M12x1.5 studs before ordering—metric fine-pitch is common on many imports and newer domestic vehicles, but some vehicles use coarse-pitch (M12x1.25). Check your vehicle's service manual or existing lug nut markings to confirm.

Do I use both 53mm and 83mm nuts on the same car?

Not typically. The length you need depends on your wheel bolt depth. Measure or compare to your current nuts—you'll use one size or the other per wheel, not both mixed. The set gives you flexibility if you switch between wheel styles.

Will the anodized finish chip or peel?

Anodized aluminum is hard-coated, so it resists corrosion and wear under normal conditions. Light surface marks from installation or removal are normal and don't affect function. Heavy impact or abrasion can break through the coating, but that's rare in typical use.