What size thread is a MK2 Focus gear knob?
Typically, the gear knob on a Ford Focus Mk2 screws onto a thread sized M12 x 1.25. However, some market-specific or aftermarket knobs use slightly different pitches, such as M12 x 1.5, so it's worth verifying on your car.
Common thread sizes you may encounter
To help you navigate swapping or upgrading, here are the thread sizes most often found on Mk2 Focus gear knobs.
- M12 x 1.25 — the most common size for many Mk2 Focus gear levers.
- M12 x 1.5 — occasionally seen on certain revisions or aftermarket parts.
- M14 x 1.5 — rare, typically found with non-standard knobs or in specific markets.
Knowing which size is present on your vehicle will determine whether you can directly replace the knob or need an adapter.
How to verify your car's exact thread size
Before purchasing a replacement knob, confirm the exact thread on your lever to avoid cross-threading or an ill-fitting fit.
- Carefully remove the current gear knob to expose the thread on the shift lever.
- Measure the diameter of the threaded portion with calipers or a ruler to determine the nominal size (roughly around 12 mm for M12, or larger for M14).
- Determine the thread pitch (the distance from one thread peak to the next). This often requires a thread gauge or attempting to match with known pitches (1.25, 1.5, etc.).
- Compare your measurements to standard metric thread sizes (M12 x 1.25, M12 x 1.5, M14 x 1.5, etc.).
- If uncertain, consult the vehicle’s service manual, dealership parts desk, or bring the lever or knob to a shop to cross-check.
- Once you have the exact size, select a genuine or aftermarket knob with a matching thread or use an appropriate adapter if you prefer a different style.
Verifying in this way ensures you get a knob that threads on smoothly and remains secure during driving.
Alternative options if you encounter a non-standard thread
Not all Mk2 Focus setups use a standard, easily matched thread. If you find your lever uses a non-standard size, consider these approaches.
- Use an adapter kit that converts your lever’s thread to a common aftermarket knob size.
- Choose a universal, no-thread knob that secures with a set screw or grub screw, paired with a compatible adapter.
Adapters and universal knobs can expand your options, but ensure any adapter is rated for automotive use and securely fastens to avoid loosening while driving.
Summary
For most Ford Focus Mk2 models, the factory thread size for the gear knob is M12 x 1.25, with occasional variations of M12 x 1.5 or, more rarely, M14 x 1.5 depending on market or aftermarket components. To ensure a proper fit, remove the current knob, measure the lever’s threads, and verify pitch with a thread gauge or manufacturer specifications. If you encounter a non-standard size, consider an adapter or a no-thread, set-screw solution to achieve a secure guest knob without cross-threading.
