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What size are Subaru wheel stud threads?

The standard wheel stud thread size for Subaru vehicles is M12 x 1.25. This means the wheel studs have a diameter of 12 millimeters and a thread pitch of 1.25 millimeters per thread. This is a common wheel stud size used across many Subaru models, providing a secure connection between the wheel and the vehicle's hub.


Understanding Wheel Stud Specifications


Wheel studs are the threaded fasteners that protrude from the vehicle's wheel hub, allowing the wheel to be securely mounted. The thread size is typically expressed in two numbers, such as M12 x 1.25, where the first number represents the diameter in millimeters and the second number represents the thread pitch, or the distance between each thread.


The M12 x 1.25 wheel stud size is a common specification found on many Subaru models, including the Impreza, Outback, Ascent, and others. This size provides a strong and reliable connection between the wheel and the vehicle, ensuring the wheel remains firmly in place during driving.


Importance of Proper Wheel Stud Size


Using the correct wheel stud size is crucial for the safety and performance of your Subaru. Incorrect stud size can lead to a range of issues, including:



  • Wheel Vibration: Improperly sized studs can cause the wheel to become loose, leading to dangerous vibrations while driving.

  • Wheel Separation: In extreme cases, a wheel could completely separate from the vehicle if the studs are not the correct size and properly tightened.

  • Damage to Wheel and Hub: Incorrect stud size can cause damage to the wheel's mounting surface and the vehicle's wheel hub, leading to costly repairs.


It's essential to always use the recommended M12 x 1.25 wheel stud size when servicing or replacing the wheels on your Subaru. Consult your owner's manual or a qualified mechanic if you're unsure about the correct wheel stud specifications for your vehicle.

Are Subaru lug nuts metric or standard?


Yes, almost all Subaru cars use metric bolts. The thread sizes of the lug nuts will vary based on the wheel studs. Therefore, you need metric Subaru lug nuts to fully secure the wheels. For example, the most common metric thread sizes of Subaru bolts are M12x1.



What size are the threads on a Subaru Outback?


The lug nuts on most Subaru Outback models from 2010 to 2022 are 12×1.25mm. This means the lug nuts have a diameter of 12mm and a thread pitch of 1.25mm. Some international market Outbacks may also have different sized lug nuts, so always check your owner's manual if you're unsure.



What size are Subaru lug nuts?


What Size are OEM Subaru Lug Nuts? The lug nut size on most Subarus is 12mm x 1.25. This includes models like the Impreza, Legacy, Outback, Forester, Crosstrek, and newer WRX/STi models. It's important to stick with OEM Subaru lug nuts or get high-quality aftermarket nuts in the proper size.



What size thread are Subaru studs?


There are various wheel nuts for Subaru in the market. Most Subaru vehicles use steel wheel nuts. The most common thread sizes that are used by Subaru cars are M12x1. 25 and M12x1.



What is the thread size of a stud?


Stud & Bolt Thread Pitches

Bolt Diameter in InchesStud UN Thread Per InchWrench Size Inches
181-5/8
1-1/881-13/16
1-1/482
1-3/882-3/16



What size are the wheel nuts on a Subaru Outback?


Dorman – Wheel Nut M12-1.25 Acorn – 19mm Hex, 24mm Length (Part No. 611-076)



What size are wheel stud threads?


The thread size or thread diameter is the measurement taken across the outside diameter of your wheel stud threads measured in either standard (7/16″, 1/2″, etc.) or metric (12mm, 14mm, etc.) dimensions. The most common thread sizes are 10mm, 12mm, 14mm, 7/16″, 1/2″, 9/16″, 5/8″.



What stud pattern is a Subaru Outback?


5x114.
Two different bolt patterns are available depending on the year of your Subaru Outback. For anything older than 2014, your bolt pattern is 5x100. Newer than 2014, you'll need a 5x114.



What are common wheel stud threads?


Here we list an overview of the most common thread sizes for wheel studs and wheel hubs:

  • MF 12 x 1,25 (nominal dimension 12 / 1,25 mm pitch)
  • MF 12 x 1,5 (nominal dimension 12 / 1,5 mm pitch)
  • MF 14 x 1,25 (nominal dimension 14 / 1,25 mm pitch/ for BMW)
  • MF 14 x 1,5 (nominal dimension 14 / 1,5 mm pitch)



What is the thread on a Subaru lug bolt?


Nearly all Japanese cars use 12mm lug nuts and studs. This is the diameter of the threaded section of the stud. Subaru and Nissan do something a little different than the other manufacturers; they use a 1.25 thread pitch. All of the other Japanese manufacturers use a 1.5 thread pitch.


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.