Will these work with my current wheels, or do I need extended studs?

Extended lug nuts work with factory studs — they're designed to give you more thread engagement on wheels with deeper bore diameters or when running spacers. If your current wheels fit standard nuts flush, these will simply sit taller. No stud modification needed.

Do these come with any washers or springs?

These are lug nuts only — no washers, springs, or locking inserts included. You're getting 20 fasteners ready to install.

Can I use these if I'm switching from steel lug nuts?

Yes, as long as your wheels are threaded for M12 x 1.5. Swap them 1-to-1 for your current nuts. Tighten to your vehicle's factory specification — refer to your service manual for torque specs.