Will these fit my wheel studs?

These are M12 x 1.5 thread pitch. Verify your vehicle or wheel studs match this specification before ordering — using the wrong thread pitch will not seat correctly.

Do I need to replace all my lugs at once?

You get 20 pieces in this set. Most vehicles need 16–20 lugs depending on configuration, so this covers a full replacement for most cars and trucks.

Can I paint over the light blue finish?

The aluminum is finished and ready to use as-is. If you want a different color, lightly scuff the surface with fine grit sandpaper before applying automotive paint or powder coat.