Parts for your 2020 Subaru Impreza-Wheel studs nuts

2020 Subaru Impreza wheel studs and nuts (wheelstudsnuts): what they do and how to look after them

Yes, wheelstudsnuts are absolutely relevant on the 2020 Subaru Impreza. Subaru fits pressed-in wheel studs and separate wheel nuts (not wheel bolts) on this model. This is confirmed by the 2020 Subaru Impreza Owner’s Manual (Wheels and Tyres section) and the Subaru Service Manual for the chassis/hub assembly, which both describe wheel studs pressed into the hub with nuts used to clamp the wheel. The owner’s manual also specifies the wheel nut tightening torque of 120 N·m (about 89 ft‑lb).

On the 2020 Impreza, the wheelstudsnuts create the clamping force that keeps the wheel seated firmly against the hub face, managing braking, cornering and acceleration loads. The studs are M12 × 1.25 thread and the factory nuts use a 60‑degree tapered (cone) seat to match OEM wheels. The bolt pattern is 5×100 with a 56.1 mm hub bore. It’s a simple, serviceable setup that suits Aussie and Kiwi driving conditions and workshop habits.

Servicing of your 2020subaruimpreza wheelstudsnuts is straightforward and worth doing any time tyres are rotated or wheels are off. Keep threads clean and dry, start nuts by hand to avoid cross‑threading, and tighten with a calibrated torque wrench rather than sending it with a rattle gun. Subaru specifies dry threads, adding lubricant or anti‑seize alters clamping force and can lead to over‑torque.

• Tightening: torque to 120 N·m in a star pattern, then recheck after 50–100 kilometres of driving.
• Inspection: look for stretched or rusty studs, damaged threads, or swollen/rounded nuts. Replace any suspect pieces immediately.
• Compatibility: stick with 60‑degree tapered nuts that match the wheel seat, avoid mag‑seat hardware unless the wheel design calls for it.

Common reasons to replace wheel studs and nuts include corrosion (road salt near the coast can be brutal), impact damage from wheel changes, or previous over‑tightening. Stud replacement involves pressing out the old stud from the hub and installing a new one, depending on the corner, access may require partial hub or brake removal. If several studs are damaged on one hub, it’s smart to replace the set and all matching nuts. Keeping the clamping system healthy prevents brake shudder, wheel vibration and, in worst cases, wheel loss. Treated right, the Impreza’s studs and nuts provide years of reliable service.

• Popular questions related to 2020subaruimpreza wheelstudsnuts

What is the correct wheel nut torque for a 2020 Subaru Impreza?

The 2020 Impreza’s wheel nut torque is 120 N·m (about 89 ft‑lb) as stated in the owner’s manual. Tighten in a star pattern and recheck after 50–100 km to make sure the clamping force has settled evenly.

What thread size and seat type does the 2020 Impreza use?

It uses M12 × 1.25 studs with 60‑degree tapered (cone) seat nuts, designed for Subaru’s OEM wheel seats and a 5×100 bolt pattern. Matching the seat style is crucial for proper clamping.

Should anti‑seize be used on the Impreza’s wheel studs?

No. Subaru documentation calls for clean, dry threads. Lubricants change friction and can lead to over‑torquing even when the wrench reads correctly, risking stretched studs or warped brake rotors.