What is the thread pitch of a Subaru wheel stud?
The thread pitch of a Subaru wheel stud is typically 12x1.25 mm. This means the stud has 12 threads per inch and a thread diameter of 1.25 millimeters. This thread pitch is a common specification for many Subaru models, ensuring a secure and reliable connection between the wheel and the vehicle's hub.
Understanding Wheel Stud Thread Pitch
The thread pitch of a wheel stud refers to the distance between the threads, measured in threads per inch (TPI) or millimeters per thread. This specification is crucial for ensuring a proper fit and preventing issues such as wheel separation, which can be dangerous.
Subaru, like many other automotive manufacturers, uses a standardized thread pitch for their wheel studs to maintain consistency and compatibility across their vehicle lineup. The 12x1.25 mm thread pitch is a common specification found on a variety of Subaru models, including the Impreza, Outback, Ascent, and others.
Importance of Proper Wheel Stud Thread Pitch
The thread pitch of a wheel stud is essential for several reasons:
- Secure Wheel Attachment: The correct thread pitch ensures a tight, secure fit between the wheel and the vehicle's hub, preventing the wheel from becoming loose or detaching while driving.
- Durability: The thread pitch, along with the stud material and design, contributes to the overall durability and longevity of the wheel attachment system.
- Compatibility: Using the correct thread pitch ensures that the wheel can be properly mounted and torqued to the recommended specifications, which is crucial for safe operation.
Failure to use the proper thread pitch can lead to a range of issues, including wheel vibrations, uneven tire wear, and, in the worst-case scenario, a wheel separation incident, which can be catastrophic.
Checking and Replacing Wheel Studs
If you need to replace a wheel stud on your Subaru, it's essential to ensure that the replacement stud has the correct 12x1.25 mm thread pitch. Attempting to use a stud with the wrong thread pitch can damage the vehicle's hub and lead to further problems.
It's always recommended to consult your Subaru's owner's manual or a qualified automotive technician when performing any wheel-related maintenance or repairs to ensure the proper components and procedures are used.
What is the thread size of a stud?
Stud & Bolt Thread Pitches
| Bolt Diameter in Inches | Stud UN Thread Per Inch | Wrench Size Inches |
|---|---|---|
| 1 | 8 | 1-5/8 |
| 1-1/8 | 8 | 1-13/16 |
| 1-1/4 | 8 | 2 |
| 1-3/8 | 8 | 2-3/16 |
What is the thread pitch of a wheel stud?
The thread pitch is the measurement of threads per inch for US standard wheel studs or the distance in millimeters between the threads for metric applications. US lugs specify threads per inch (TPI), commonly called thread count, so 20 would represent 20 threads per inch.
What stud pattern is Subaru?
Most Subaru cars use either a 5×100 or 5×114.3 pattern.
What size is a Subaru wheel stud?
12/ 1.25 is the correct one.
What is the thread pitch of a Subaru?
Thread size is 12x1. 25.
What pitch are Subaru wheel studs?
1.25
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.
Are Subaru bolts 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 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 size thread is a Subaru Forester wheel stud?
M12-1.25
Dorman – Wheel Stud: Serrated, M12-1.25 Thread Size, Right Hand Thread (Sold by each) (Part No. 610-322) These wheel lug studs are made of carbon steel and tested to demanding automotive industry standards to ensure strength, longevity and safety.
Does Subaru use metric or standard bolts?
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.
