2021 Hyundai I30 Lug Nut Torque & Bolt Specs

The 2021 Hyundai I30 lug nut torque is 118 Nm, tightened with a 21mm socket on M12x1.5 studs. Torque in a star pattern in two passes (snug, then final), and re-check after the first 50–100 miles of driving. Use a calibrated torque wrench — not an impact gun — for the final pass. The wheel bolt pattern is 5x114.3.

Lug nut torque: 118 Nm · Socket size: 21mm · Thread: M12x1.5 · Bolt pattern: 5x114.3.

This page is the OEM-referenced fastener summary for the 2021 Hyundai I30. Use it before any maintenance or repair job where torque values matter — brake work, wheel changes, suspension service, engine teardowns, or oil changes. Specs are pulled from manufacturer service literature, cross-checked against community data, and updated as new chassis variants become available.

Hyundai/Kia lug-nut torque is 79-88 ft-lbs on nearly all passenger models, M12x1.5 thread, 21mm socket. The Tucson, Sportage, and Santa Fe all use the same fastener spec. Hyundai's oil drain plug threads are unusually fine-pitch and strip easily — always use a torque wrench, not feel.

Common fastener categories on the 2021 Hyundai I30

Wheel / lug nut torque and thread spec (covered above)
Brake caliper bracket bolts (typically 80-130 ft-lbs) and slide/guide pins (18-35 ft-lbs)
Engine oil drain plug torque — rarely above 30 ft-lbs; always use a new crush washer
Transmission pan, valve cover, and intake manifold bolts (low torque, often 89-106 in-lbs)
Suspension control arm, sway bar, tie rod end and ball joint torque
Spark plug torque (typically 10-15 ft-lbs on aluminum heads — do not exceed)
Differential cover bolts (RWD/4WD only) and transfer case fasteners

Repair guidance for this model year

For 2021 late-model work: Modern vehicles increasingly use aluminum body and suspension components. Aluminum fastener torque is typically 60-70% of equivalent steel torque, and aluminum threads strip easily. Use a calibrated torque wrench and apply anti-seize on any steel fastener threading into aluminum.

Tools you will need

Metric socket set (8mm-22mm), 6-point impact-rated
Calibrated torque wrench (10-150 ft-lbs covers most automotive jobs; add a 0-250 ft-lbs wrench for truck lug nuts)
Breaker bar (24" minimum) for initial loosening
Penetrating oil (PB Blaster or Kroil) for any fastener over 5 years old
Anti-seize on stainless or dissimilar-metal threads; thread-locker (Loctite blue) on critical reassembly

Frequently asked questions

What is the lug nut torque on a 2021 Hyundai I30?

The OEM-specified lug-nut torque for the 2021 Hyundai I30 is 118 Nm, using a 21mm socket on M12x1.5 thread studs. Use a calibrated torque wrench in a star pattern, in two passes (50% and 100%), and re-check after 50-100 miles of driving.

What socket size do I need for the 2021 Hyundai I30 lug nuts?

The 2021 Hyundai I30 uses a 21mm socket. A 6-point impact-rated socket is recommended over a 12-point chrome socket — 12-points round off lug nuts under impact-driver use.

Are the 2021 Hyundai I30 fasteners metric or SAE?

Metric is the standard for this vehicle. Most fasteners on this vehicle are metric (M6, M8, M10, M12, M14). Bring a full metric set; SAE substitutes can round the head. Bolt-head markings are the fastest way to confirm grade and material at the bench.

Other Hyundai I30 years

Same model, different model year — fastener spec may change. Always confirm against the year for your VIN.

→ 2021 Hyundai I30 oil drain plug torque & size

→ 2021 Hyundai I30 suspension & steering torque specs (control arm, ball joint, tie rod)

All 16 2021 Hyundai I30 fastener specs

Per-bolt torque, wrench size, and thread spec for the 2021 Hyundai I30, sourced from OEM service literature and verified against community shop data. Values pair imperial (ft-lb) and metric (Nm) where the manufacturer publishes both.

Wheels — 2021 Hyundai I30

Wheel and lug nut spec for the 2021 Hyundai I30. The lug nut uses a 21mm drive on a M12x1.5 thread, torqued to 79-94 ft-lbs at the all four wheels.

Engine — 2021 Hyundai I30

Engine bolt-by-bolt torque for the 2021 Hyundai I30, including the long block, valve covers, and intake. At the engine block, the oil filter torques to 12 Nm (76mm drive, 3/4-16 UNF thread). For the oil pan, plan for a 17mm tool on a M14x1.5 stud; final torque is 35 Nm (oil drain plug). Spark plug tightens to 25 Nm, takes a 16mm driver, runs on M14x1.25 threads, located at the cylinder head.

Suspension — 2021 Hyundai I30

Suspension and chassis fastener torque for the 2021 Hyundai I30 — strut, control arm, and sway bar values. For the subframe, plan for a 18mm tool on a M14x1.5 stud; final torque is 118 Nm (front lower control arm). Front strut lower bolt tightens to 147 Nm, takes a 18mm driver, runs on M14x1.5 threads, located at the knuckle. The rear shock lower bolt uses a 17mm drive on a M12x1.5 thread, torqued to 98 Nm at the rear axle. At the knuckle, the front tie rod end nut torques to 45 Nm (17mm drive, M12x1.5 thread). For the strut tower, plan for a 17mm tool on a M12x1.5 stud; final torque is 50 Nm (front strut upper nut).

Wheel — 2021 Hyundai I30

Wheel fasteners on the 2021 Hyundai I30. Front axle nut tightens to 200 Nm, takes a 30mm driver, runs on M22x1.5 threads, located at the front. The wheel lug nut uses a 21mm drive on a M12x1.5 thread, torqued to 118 Nm at the front/rear.

Brake — 2021 Hyundai I30

Brake fasteners on the 2021 Hyundai I30. The front brake caliper bracket uses a 17mm drive on a M14x1.5 thread, torqued to 89 Nm at the front hub. At the rear hub, the rear brake caliper bracket torques to 69 Nm (17mm drive, M14x1.5 thread). For the rear caliper, plan for a 14mm tool on a M10x1.25 stud; final torque is 27 Nm (rear brake caliper bolt). Front brake caliper bolt tightens to 27 Nm, takes a 17mm driver, runs on M12x1.5 threads, located at the front caliper.

Transmission — 2021 Hyundai I30

Transmission fasteners on the 2021 Hyundai I30. At the trans pan, the transmission drain plug torques to 35 Nm (17mm drive, M14x1.5 thread).

New to torquing wheels? Read our How lug nut torque works — the complete guide for star-pattern sequence, re-torque intervals, and how to read a lug spec — then use the 2021 Hyundai I30 numbers above.

Loading the interactive 2021 Hyundai I30 fastener lookup with per-bolt filtering, part links, and torque tools…