The lug nuts on a 2015 Subaru Forester use a 19mm socket for installation and removal. The wheel studs are M12x1.25, and the lug nuts are 60-degree conical-seat nuts designed for the 5x100 bolt pattern.
Specs at a glance
The following items summarize the key lug nut specifications you should know when servicing the wheels on this model.
- Socket size (lug nuts): 19 mm
- Stud size: M12 x 1.25
- Bolt pattern: 5x100
- Lug nut seat type: 60-degree conical (tapered) seat
These specifications help ensure you have the right tools and fasteners for safe wheel installation and removal.
Torque and installation tips
When reinstalling wheels, use a torque wrench and follow factory guidance. A typical torque range for Forester lug nuts is roughly 94–110 ft-lb (128–149 N·m), depending on wheel type and tires. Tighten in a star pattern to ensure even seating, and recheck torque after a short drive to confirm the nuts remain secure.
Maintenance and replacement considerations
If you replace lug nuts, verify the thread pitch (M12x1.25), seat type, and overall nut dimensions match the originals. Use appropriate anti-seize products only if recommended by the manufacturer, and inspect lug nuts for wear or damage. When replacing a wheel, it’s best to replace all nuts on that wheel to maintain even clamping force.
Summary
For a 2015 Subaru Forester, the lug nuts require a 19mm socket, with M12x1.25 studs and a 60-degree conical-seat configuration compatible with a 5x100 bolt pattern. Follow proper torque procedures and periodic checks to keep wheels secure and safe on the road.