Parts for your 2018 Toyota Vitz|yaris-Wheel studs nuts

2018 Toyota Vitz/Yaris wheel studs and nuts

Technical sources confirm the 2018 Toyota Vitz/Yaris is built with wheel studs and nuts, not wheel bolts. The Toyota Owner’s Manual for this model (Changing a flat tyre and Specifications sections) specifies tightening the wheel nuts to around 103 N·m, and the Toyota service manual (TIS) hub assembly procedures show pressed-in stud bolts with separate nuts. Toyota’s electronic parts catalogue diagrams for the front and rear hubs also depict stud bolts, which seals the deal that wheel studs and nuts are relevant to this vehicle.

On the Vitz/Yaris, the studs are pressed into the hub and the conical-seat nuts clamp the wheel to the hub face. That clamping force is what keeps the wheel centred and secure. For most variants of this generation, the setup is a 4x100 PCD using M12 x 1.5 threads with 60° taper nuts and a 21 mm hex, but always check the vehicle plate or the genuine parts listing for your exact build.

As part of regular servicing or any wheel-off job (tyres, brakes, suspension), it pays to give the studs and nuts some attention:

• Torque correctly: tighten the wheel nuts to about 103 N·m using a star pattern. Use a torque wrench for the final pass—don’t rely on the rattle gun.
• Keep threads dry and clean: Toyota repair guidance advises against lubricating stud or nut threads. Clean, dry threads provide accurate clamping force at the specified torque.
• Inspect for damage: look for stretched or mushroomed studs, cross-threading, rusty or pitted threads, and worn cone seats on the nuts. Replace any part that’s suspect.
• Retorque after driving: if wheels have been off, recheck torque after 50–100 km to account for any settling.
• Wheel-to-hub prep: ensure the hub face and wheel mounting face are clean and flat—no flakes of rust or old paint that can cause a false torque reading.

If a stud spins in the hub or a nut won’t seat smoothly by hand, stop and sort it—forcing it risks hub damage. Replacing a damaged stud involves pressing or drawing the old one out and installing a new genuine-spec stud, on some rear hubs (especially with integrated bearings), hub removal may be required. When changing wheels, always match the nut’s seat style and thread pitch to avoid vibration or loss of clamping force. Treated well, the Yaris’s studs and nuts deliver reliable, drama-free kilometres.

Popular questions

Does the 2018 Toyota Vitz/Yaris use wheel studs and nuts or wheel bolts?
It uses wheel studs and separate nuts. Toyota’s owner’s manual and service procedures for this model show pressed-in studs on the hubs with conical-seat wheel nuts, rather than wheel bolts that screw directly into the hub.

What’s the correct wheel nut torque and tightening pattern?
The commonly specified torque is about 103 N·m. Tighten in a star pattern to seat the wheel evenly. Use a torque wrench for the final tighten and recheck after 50–100 km if the wheel has been off. Avoid lubricants on the threads to maintain correct clamping force.

When should wheel studs or nuts be replaced?
Replace any stud with damaged or stretched threads, a distorted tip, or if it spins in the hub. Swap out nuts with chewed threads, cracked or rounded hexes, or worn cone seats. If one stud fails due to over-tightening, inspect the rest on that hub, as others may be stressed.