The lug nuts on a 2012 Hyundai Sonata are M12x1.5 with a conical seat, used on a standard 5-lug pattern, and you’ll typically need a 21 mm wrench to install or remove them.
Standard lug nut specs
The following specs cover the factory hardware used on most 2012 Sonatas. If your vehicle has aftermarket wheels or a non-stock configuration, verify compatibility with the wheel manufacturer or owner’s manual.
- Bolt pattern: 5 × 114.3 mm (5-lug, 4.5" bolt circle)
- Thread size: M12 × 1.5
- Stud diameter: 12 mm
- Seat type: conical (60-degree) seat
- Nut hex size: 21 mm (socket; some wheels may use a different size)
These specifications reflect the stock setup for most 2012 Sonatas. Variations can occur with aftermarket wheels or different trim packages, so always confirm before purchasing replacements.
Variations and considerations
If your Sonata has aftermarket wheels or a sport package, there’s a chance the lug nut dimensions or seat type differ. Always check the wheel manufacturer’s guidance or your owner’s manual to avoid buying incompatible fasteners or risking damage to studs and wheels.
Summary
For the 2012 Hyundai Sonata, expect five lug nuts per wheel on a 5-lug, 114.3 mm bolt circle. The standard hardware uses M12x1.5 threads, 12 mm studs, a conical seat, and a 21 mm hex size. If you’re mounting aftermarket wheels, verify exact specifications with the manufacturer or a Hyundai dealer.