What is the thread pitch of a Subaru?
The thread pitch of a Subaru refers to the number of threads per inch (TPI) on the various threaded fasteners and components used in Subaru vehicles. This is an important specification that impacts the fit, strength, and compatibility of replacement parts. Understanding the thread pitch is crucial for properly servicing and maintaining a Subaru.
What is Thread Pitch?
Thread pitch is a measurement that describes the distance between the threads on a threaded fastener, such as a bolt or nut. It is typically expressed as the number of threads per inch (TPI) or the distance between threads in millimeters. The thread pitch determines the coarseness or fineness of the threads and affects the torque required to tighten or loosen the fastener.
Subaru Thread Pitch Specifications
Subaru vehicles use a variety of thread pitches across their different models and components. Some common Subaru thread pitches include:
- M6 x 1.0 - This is a metric thread pitch commonly used for smaller fasteners like those found in the engine, transmission, and suspension components.
- M8 x 1.25 - Another metric thread pitch used for larger fasteners in the chassis, body, and other areas.
- 10-32 UNF - This is a standard (SAE) thread pitch used for some smaller fasteners.
- 1/2-13 UNC - A standard (SAE) thread pitch used for larger fasteners like those found in the wheel lug nuts.
It's important to always refer to the specific thread pitch called for in the Subaru service manual when replacing or servicing any threaded components to ensure a proper fit and avoid damage.
Importance of Correct Thread Pitch
Using the wrong thread pitch when servicing a Subaru can lead to several issues:
- Improper Fit - Threads that don't match can cross-thread or not engage properly, leading to a loose or unstable connection.
- Damage to Components - Forcing the wrong threads together can strip the threads on the fastener or the component, causing permanent damage.
- Safety Concerns - Improperly secured fasteners can lead to parts coming loose, which poses a serious safety risk.
To avoid these problems, it's critical to always use the correct thread pitch specified by Subaru for any replacement parts or service work.
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 size thread is 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.
What size is the shift thread on a Subaru?
Shift Knob Thread Sizes
| Make | Model | Adapter |
|---|---|---|
| Subaru | Forester | 12x1.25 |
| Subaru | Impreza | 12x1.25 |
| Subaru | Legacy | 12x1.25 |
| Subaru | Outback | 12x1.25 |
Is the Subaru 5x114 3?
All Subaru Impreza WRX through 2014, the 2004 WRX STi, and standard Impreza models use a 5x100 bolt pattern. Everything else uses a 5x114. 3 bolt pattern.
What is the thread pitch of a Subaru lug nut?
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 all Subaru lug nuts the same?
No, not all Subaru lug nuts are the same. 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.
What is my thread pitch?
Pitch is determined by measuring the distance between adjacent peaks or valleys of the thread in millimeters. Align the head of the fastener to the start of the ruler, and find a thread that is in alignment with a measurement mark. Next determine how far it is to the next peak or valley.
What cars use 5x114 3 bolt pattern?
Popular Cars with 5x114. 3 Wheels
- Ford Mustang: One of America's most iconic sports cars, the Mustang has used the 5x114. 3 bolt pattern for several generations.
- Honda Accord: A staple in the sedan market, the Accord has featured this bolt pattern in various models over the years.
What is the bolt pattern of a Subaru?
A good rule of thumb is, for anything older than 2018, your bolt pattern is typically 5x100. Newer than 2018, it's a 5x114. 3 bolt pattern.
What is the thread pitch of a 2009 Subaru Impreza shift knob?
12x1.25
Thread size is 12x1. 25.
