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What size are the wheel nuts on a 2010 Subaru Forester?

The standard lug nuts for a 2010 Subaru Forester are M12 x 1.25 with a 19 mm hex, fitting a 5x100 mm bolt pattern.



Specifications at a glance


Here are the core wheel hardware specifications you’ll typically encounter on a 2010 Forester with stock wheels:



  • Bolt pattern: 5x100 mm

  • Lug nut thread size: M12 x 1.25

  • Lug nut hex size: 19 mm

  • Number of lug nuts per wheel: 5


These specifications are the standard baseline for the 2010 Forester. If your vehicle uses aftermarket wheels, confirm compatibility with the manufacturer or a qualified technician to ensure proper threading and seating.


How to verify on your vehicle


To confirm the correct size for your specific car, follow these steps:



  1. Inspect the current lug nuts and studs to confirm a match with M12 x 1.25 threads and a 19 mm hex.

  2. Consult the owner's manual or Subaru’s official parts listings for your trim and wheel type.

  3. If in doubt, measure the wheel studs or consult a professional to verify seat type and thread pitch before purchasing replacements.


Verifying the correct lug nut size helps prevent cross-threading, improper seating, and wheel detachment risks.


Summary


In short: For the 2010 Subaru Forester, use lug nuts with an M12 x 1.25 thread, a 19 mm hex, and a 5x100 bolt pattern—five lug nuts per wheel. If your wheels are aftermarket or you’re unsure, always verify against the vehicle’s manual or consult a dealer or mechanic.

What size are the lug nuts on a 2011 Subaru Forester?


12 mm x 1.25
Notes: Nut. 12 mm x 1.25 thread size.



What size are the lug nuts on a 2010 Subaru Forester?


The lug nut size for a 2010 Subaru Forester is M12 x 1.25, meaning a 12mm diameter with a 1.25mm thread pitch. They typically have a 3/4" hex head and a 60° cone seat. 

  • Thread size: M12 x 1.25
  • Hex size: 3/4"
  • Seat type: 60° cone seat



What size socket goes on a lug nut?


The most common socket sizes for lug nuts are 19mm or 21mm, but sizes can vary by vehicle. A 13/16-inch socket is often the correct imperial size, as it's very close to 21mm. To ensure the correct fit, check your vehicle's manual, or bring a lug nut to a hardware or auto parts store to get the right size socket. A 1/2-inch drive socket wrench is recommended for its torque capacity.
 
Common lug nut socket sizes

  • Metric: 19mm, 21mm (most common), 17mm, 22mm
  • Standard: 13/16 inch (often fits 21mm lug nuts) 

How to find the right socket size
  • Check your owner's manual: This is the most reliable way to confirm the correct size for your specific vehicle. 
  • Measure or bring a lug nut: If you don't have your manual, take one of the lug nuts to a hardware or auto parts store to find the correct socket size. 
  • Use a socket set: Consider getting a set of sockets specifically designed for lug nuts, which often includes both common metric and imperial sizes, like those from TEKTON Hand Tools. 

Tips for removing and installing lug nuts
  • Use a 6-point socket: A 6-point socket is less likely to round off the corners of the lug nut compared to a 12-point socket. 
  • Use a deep-wall socket: Deep-wall sockets are designed to fit over the lug nut and are often necessary when the nut is recessed within the wheel. 
  • Choose the right drive size: A 1/2-inch drive is recommended for lug nuts because it can handle the higher torque often required for tightening them properly. 
  • Use a torque wrench: Always use a torque wrench to tighten lug nuts to the manufacturer's specifications to ensure proper and safe installation. 



What size are the wheel nuts on a Subaru Forester?


The lug nut size for a Subaru Forester is M12x1.25, with a thread pitch of 1.25 mm and a thread diameter of 12 mm. The hex size is typically 13/16" (or 19mm), and the seat style is 60° conical.
 

  • Thread Size: M12x1.25
  • Hex Size: 13/16" (19mm)
  • Seat Style: 60° conical
  • Important: Always consult your owner's manual or wheel manufacturer's guide to confirm the correct specifications for your specific vehicle.


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.