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Are Subaru lug nuts metric or standard?

Subaru lug nuts are metric. Most Subaru models use metric thread sizes on the lug nuts (typically M12 with pitches such as 1.25 or 1.5) and a 60-degree conical seat. Always verify the exact size for your model in the owner’s manual or by inspecting the current hardware.


This article clarifies what “metric” means for Subaru lug nuts, outlines the sizes you’re most likely to encounter, and provides practical steps to identify and source the correct lug nuts for your vehicle.


What metric means for Subaru lug nuts


In automotive terminology, “metric” refers to measurements in millimeters for diameter and thread pitch, as opposed to imperial (inch-based) measurements. For Lug nuts on Subarus, the studs are usually 12 millimeters in diameter, and the thread pitch varies by model and year. Lug nuts are typically designed for a 60-degree conical seat, which matches the wheel отверстий and ensures a proper seating surface. Using the correct metric size and seat type is essential for safe wheel mounting and proper torque transfer.


Common sizes you may encounter


Before purchasing replacements or aftermarket lug nuts, it helps to know the sizes you’re likely to see on Subaru wheels. The most common possibilities are listed below, but always double‑check your exact vehicle specifications.



  • M12x1.25 — Very common on many newer Subaru models with 12 mm studs and a 60-degree conical seat.

  • M12x1.5 — Also used on some Subaru models or wheel packages; verify against the OEM parts for your car.


Because wheel configurations can vary by model, year, and aftermarket wheels, confirm the exact size by checking the owner’s manual, the parts Catalog, or the current lug nuts that came with your wheels.


How to identify the correct lug nuts for your Subaru


To ensure you’re using the right lug nuts, follow these steps. The list below helps you verify size, pitch, seat type, and compatibility with your wheels.



  1. Find the exact model year and trim of your Subaru to look up factory specifications for lug nut size and torque.

  2. Inspect the current lug nuts or wheel studs to determine the thread pitch (measure the thread spacing or compare with known sizes).

  3. Check the wheel’s bolt pattern and seat type (most Subarus use 60-degree conical seats with a 5x100 bolt pattern on common models, but verify for your wheel).

  4. Choose lug nuts that match M12 (12 mm diameter) with the correct pitch (often 1.25 or 1.5) and a 60-degree cone seat; ensure they are compatible with your wheel’s size and thread engagement requirements.

  5. Consult the owner’s manual or a Subaru dealer/parts catalog if you’re unsure, especially when using aftermarket wheels or changing wheel sizes.


With the correct lug nuts chosen, you’ll ensure safe installation, reliable seating, and accurate torque transfer to the wheel.


Summary


Subaru lug nuts are generally metric, with common thread sizes being M12x1.25 and M12x1.5, paired with a 60-degree conical seat. Always confirm the exact size for your specific model and wheel configuration by consulting the owner’s manual or parts catalog, and use the recommended torque when installing. If in doubt, have a professional verify the fit to avoid improper seating or wheel detachment.

Kevin's Auto

Kevin Bennett

Company Owner

Kevin Bennet is the founder and owner of Kevin's Autos, a leading automotive service provider in Australia. With a deep commitment to customer satisfaction and years of industry expertise, Kevin uses his blog to answer the most common questions posed by his customers. From maintenance tips to troubleshooting advice, Kevin's articles are designed to empower drivers with the knowledge they need to keep their vehicles running smoothly and safely.