The lug nuts on a 2009 Honda Civic are M12 x 1.5 with a 60-degree conical seat and require a 19 mm socket. The wheel uses a 5x114.3 mm bolt pattern, and the typical torque specification is about 80 ft-lbs (108 Nm) per nut when tightened in a crisscross sequence.
This article provides a concise breakdown of the standard lug nut specs for the 2009 Civic, how to verify them on your wheels, and what to consider if you’re replacing hardware or upgrading wheels.
Standard lug nut specifications
The following list captures the core measurements and compatible tools for the 2009 Civic’s lug nuts.
- Thread size: M12 x 1.5
- Seat type: 60-degree conical (acorn-style) seat
- Hex size for installation/removal: 19 mm (approximately 3/4 inch) socket
- Wheel bolt pattern: 5 × 114.3 mm
- Number of lug nuts per wheel: 5
- Recommended torque: about 80 ft-lbs (108 Nm) in a crisscross sequence
Note: Aftermarket lug nuts or wheels can alter these specs. Always verify with the vehicle’s manual or the wheel manufacturer before replacing hardware.
Verification and variations
Trims and aftermarket considerations
While the 2009 Civic generally uses M12 x 1.5 lug nuts with a 60-degree conical seat and a 5x114.3 mm bolt pattern, some trims or aftermarket wheels may use different seat types or sizes. If you’re unsure, measure the lug nut head, check the wheel manufacturer’s specification, or consult your owner’s manual.
Summary
For a 2009 Honda Civic, standard lug nuts are M12 x 1.5 with a 60-degree conical seat, needing a 19 mm socket. Each wheel uses five lug nuts, with a bolt pattern of 5x114.3 mm and a recommended torque of roughly 80 ft-lbs (108 Nm) per nut. Always confirm particulars for your specific wheels and trim in the manual or with the manufacturer when using aftermarket parts.