Parts for your 1993 Nissan Primera-Wheel studs nuts

1993 Nissan Primera (P10) Wheel Studs & Nuts — What They Do and How to Look After Them

Based on the Nissan Primera P10 Factory Service Manual (WT: Wheels & Tyres, FA: Front Axle/Front Suspension, BR: Brake sections) and the Nissan FAST electronic parts catalogue for P10 models, the 1993 Primera uses pressed-in wheel studs with separate wheel nuts, not wheel bolts. The documentation specifies M12 x 1.25 thread studs on 4-stud hubs (4 x 114.3 PCD) with a conical-seat nut and a factory wheel-nut torque around 98 N·m (market/trim can vary slightly). So yes—wheel studs and nuts are absolutely relevant on this model.

On a ’93 Primera, the wheel studs and nuts provide the clamping force that keeps each wheel tight against the hub face. The hub does the centring, the nuts deliver the clamping. When they’re in good nick and torqued correctly, they prevent brake judder, vibration, and the kind of drama nobody wants out on the motorway.

During regular servicing or any tyre rotation, it’s smart to give the studs and nuts a once-over. Look for stretched or rusty threads, rounded nut seats, or any stud that spins in the hub. If the threads are damaged or a stud is bent, replace it—don’t try to “chase” badly flogged threads. Use quality replacements that match the Primera’s M12 x 1.25 spec and 60° conical seat nuts.

• Torque: Aim for the Nissan FSM spec of about 98 N·m, always check your manual for market-specific values.
• Tools: Use a torque wrench for final tightening. A rattle gun is fine for removal, but don’t rely on it to finish.
• Clean and dry: Keep threads dry and free of oils, avoid anti-seize on studs and nut seats. A light smear of anti-seize on the hub face (not the studs) can help prevent wheels sticking.
• Recheck: After wheel removal/refit, re-torque after 50–100 km.

Replacing a damaged stud on a P10 typically involves pressing the old stud out of the hub flange and pulling in a new stud squarely. Rear drums usually come off to access the studs, fronts may require hub removal and a press, depending on clearance. Don’t draw a new stud in with the wheel nut if it’s fighting—use proper support so you don’t warp the hub or chew the bearing. If multiple nuts show seat damage or corrosion, replace them as a set so clamping is even. Stick with the right seat style and thread pitch, and the Primera’s wheels will stay tight and tidy.

Popular questions

What size are the wheel studs and nuts on a 1993 Nissan Primera?
They’re M12 x 1.25 thread on a 4 x 114.3 PCD hub with 60° conical-seat nuts. That’s the standard Nissan spec for the P10 era. Always confirm against your vehicle’s build plate or the P10 service manual if you suspect a previous owner changed hubs or wheels.

What’s the correct torque for the wheel nuts?
The P10 factory spec is around 98 N·m for dry threads. Some market documents list values a touch higher, so it’s best to check the exact FSM for your trim and market. Use a torque wrench and re-check after 50–100 km.

Is it safe to drive with a broken wheel stud?
It’s not recommended. While the remaining studs may hold temporarily, the load isn’t shared properly. Replace the broken stud as soon as you can and avoid long trips or high speeds until it’s sorted. If more than one stud is damaged, don’t drive it—get it repaired first.