Most Nissan Altima lug nuts use a 21 mm hex (socket) size for removal and installation, with wheel studs typically M12 x 1.25. While this covers the majority of model years, some older or specialized wheels may use different sizes; check your owner's manual or measure the lug nut to be sure.
Overview by generation
Here are the common specifications that apply to most Altima models across generations, with notes on exceptions and verification steps.
- Hex size: 21 mm across flats (socket size)
- Thread size on studs: M12 x 1.25 (most models)
- Seat type: 60-degree conical seat
- Number of lug nuts per wheel: 5
These specs cover the vast majority of Altima configurations. Some wheels or trims may use a different hex or seat, so verify for your vehicle.
Year-by-year guidance
2007–2012 Nissan Altima (Fifth generation)
Most 2007–2012 Altimas use a 21 mm lug nut hex, 60-degree conical seating, and M12 x 1.25 studs with five lug nuts per wheel. Torque specifications for installation typically fall in a common range, but always confirm from the owner’s manual or a repair guide for your exact model.
2013–2018 Nissan Altima (Sixth generation)
Similar configuration applies: 21 mm hex, conical seating, M12 x 1.25 studs, five lug nuts per wheel. Always verify torque and any variations with the factory manual or a trusted source for your trim.
2019–present Nissan Altima (Seventh generation)
Again, the standard lug nut size is typically 21 mm across flats with 60-degree conical seats, M12 x 1.25 studs, five nuts per wheel. Confirm any differences if you have aftermarket wheels or a special edition.
How to verify the exact lug nut size for your car
Use these steps to confirm the correct lug nut size for your specific Altima, especially if you have aftermarket wheels or a non-standard trim.
- Consult the owner’s manual or the vehicle’s service manual for the exact lug nut size and torque specification.
- Inspect one of your lug nuts: the size across the flats (wrench size) may be stamped on the nut or on the wheel stud packaging if you recently bought it.
- If unsure, measure the hex size with a socket set; try 21 mm first, then 19 mm if 21 mm does not fit.
- When in doubt, contact a Nissan dealer or a trusted tire shop with your VIN to confirm the correct lug nuts for your wheel and trim.
Following these steps will help you confirm the exact lug nut size for your Altima, especially when dealing with aftermarket wheels or trims.
Summary
For most Nissan Altima models, expect a 21 mm lug nut hex size with five lug nuts per wheel, using M12 x 1.25 wheel studs and a 60-degree conical seat. Variations can occur, particularly with aftermarket wheels or older trims, so always verify with the owner's manual or a professional to ensure proper fit and safe torquing.