The lug nuts on a 2009 Honda Accord are standard M12 x 1.5 threads with a conical 60-degree seat, and you typically use a 19 mm socket to install or remove them. This configuration is common across most Accord trims from that year.
Understanding the exact lug nut size helps you source replacements, pick the right socket, and ensure proper wheel installation. Below is a concise guide to the key dimensions and how they apply to the 2009 Accord and closely related models.
Key specifications you should know before buying replacements or a socket set:
- Thread size and pitch: M12 x 1.5 (12 mm diameter, 1.5 mm pitch).
- Seat type: Conical (60-degree) seat, which mates with standard Honda wheel hubs.
- Nut hex size: 19 mm (socket size) is commonly used to install/remove, though locking lug nuts may require a special key or a different nut.
- Bolt pattern context (for wheels): 5-lug pattern on 114.3 mm BCD; this matters for wheel compatibility but is separate from the lug-nut size itself.
In short, if you’re replacing or servicing the wheels on a 2009 Honda Accord, you’re looking for M12 x 1.5 lug nuts with a 60-degree conical seat and a 19 mm socket to turn them. If your car has locking lug nuts, a unique key will be required to remove them, and those may not use the standard 19 mm socket.
Additional details for owners
Trims and wheel options
Most 2009 Accord trims share these lug-nut specifications. If you install aftermarket wheels, confirm the nut size and seat type with the wheel manufacturer, as some aftermarket wheels use different seat profiles or locking-lug configurations.
Locking lug nuts
Some Accords are equipped with locking lug nuts for added security. If your vehicle has a locking set, do not assume the standard 19 mm socket will fit; you’ll need the appropriate locking key and, if necessary, a compatible socket size for that key.
Summary
For a 2009 Honda Accord, expect 12 mm diameter lug studs with a 1.5 mm thread pitch (M12 x 1.5), using a conical 60-degree seat and a 19 mm socket for installation and removal. Check for locking lug nuts if present, and always verify wheel compatibility with your specific trim and any aftermarket wheels.