The lug nuts are M12 x 1.5 with a 19 mm hex, and they use a conical 60-degree seating; torque is typically about 80–85 ft-lbs (108–115 Nm).
This configuration applies to the majority of 2008 Civics with factory wheels. The article below explains the standard size, seating, torque, and what to check if you have aftermarket wheels or different packages.
Lug nut size, seating, and hex for the 2008 Civic
The following specifications cover the typical OEM setup for the 2008 Civic. If your vehicle has aftermarket wheels or a different wheel package, verify with the wheel manufacturer or service manual before purchasing or installing fasteners.
- Thread size: M12 x 1.5
- Seat type: conical (60-degree) seating
- Hex size: 19 mm
- Torque specification: 80–85 ft-lbs (108–115 Nm)
Note: Do not lubricate the lug nut threads or seating surfaces unless the manufacturer explicitly instructs otherwise, as lubricants can alter clamping force and torque readings. Always torque to specification with a properly calibrated torque wrench.
Considerations for aftermarket wheels
If your Civic has aftermarket wheels, lug nut size, seat, or thread pitch can differ. Confirm compatibility before purchasing fasteners, and use the correct torque to ensure safe installation.
- Check the wheel manufacturer’s specifications for lug nut size, seat type, and hex size.
- Compare against the lug nuts that came with the wheels or bring a reference nut to a parts store for matching.
- Refer to the vehicle’s service manual or the dealer to confirm the correct torque specification for your wheel setup.
Aftermarket configurations sometimes require different lug nut styles (e.g., different seat designs or ball/acorn shapes) or alternate hex sizes, so verification is essential.
Summary
For most 2008 Honda Civics with factory wheels, use M12 x 1.5 lug nuts with a 19 mm hex and a conical 60-degree seating, tightened to about 80–85 ft-lbs. If you switch to aftermarket wheels, always verify compatibility and torque with the wheel and vehicle manuals or your dealer.