2018 Honda Civic Lug Nut Torque & Bolt Specs

The 2018 Honda Civic lug nut torque is 80 ft-lbs, tightened with a 19mm 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.

Lug nut torque: 80 ft-lbs · Socket size: 19mm · Thread: M12x1.5.

This page is the OEM-referenced fastener summary for the 2018 Honda Civic. 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.

Honda's lug-nut torque sits at 80 ft-lbs (108 Nm) for nearly every passenger model from 1998 onward, with an M12x1.5 thread on most cars and the larger 14mm thread on Ridgeline and Pilot. The 19mm socket Honda uses is one of the only OEM oddities in the Japanese lineup — bring a 19mm with you, not just a 21mm. Honda factory torque values for engine oil drain plugs are unusually low (29 ft-lbs on most engines) and the crush washer is single-use, so replace it every oil change.

Common fastener categories on the 2018 Honda Civic

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 2018 model-year work: This era introduced widespread torque-to-yield (TTY) bolts on head, main, and crank pulley fasteners. TTY bolts stretch permanently when torqued and must not be reused — the spec calls for a fresh bolt every time. Always verify TTY status against the FSM before reassembly.

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 2018 Honda Civic?

The OEM-specified lug-nut torque for the 2018 Honda Civic is 80 ft-lbs, using a 19mm 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 2018 Honda Civic lug nuts?

The 2018 Honda Civic uses a 19mm 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 2018 Honda Civic 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 Honda Civic years

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

All 28 2018 Honda Civic fastener specs

Per-bolt torque, wrench size, and thread spec for the 2018 Honda Civic, 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 — 2018 Honda Civic

Wheel and lug nut spec for the 2018 Honda Civic. For the wheel hub, plan for a 19mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (108 Nm) (lug nut).

Brakes — 2018 Honda Civic

Brake fasteners on the 2018 Honda Civic — caliper bracket, slide pins, and banjo bolt torque follow. Front brake caliper pin bolt tightens to 31 Nm (23 lb-ft), takes a 13mm driver, runs on M8 x 1.25 threads, located at the front caliper. The front caliper bracket bolt uses a 17mm drive on a M12x1.25 thread, torqued to 80 ft-lbs at the front brake caliper bracket. At the hub, the rotor set screw torques to 4 ft-lbs (5mm drive, M5x0.8 thread). For the caliper, plan for a 14mm tool on a M12x1.25 stud; final torque is 22 ft-lbs (brake caliper bolt). Brake bleeder valve tightens to 7 ft-lbs, takes a 8mm driver, runs on M8x1.0 threads, located at the caliper.

Engine — 2018 Honda Civic

Engine bolt-by-bolt torque for the 2018 Honda Civic, including the long block, valve covers, and intake. The cam cap bolt uses a 12mm drive on a M6x1.0 thread, torqued to 15 ft-lbs at the cylinder head. At the valve cover, the valve cover bolt torques to 7.2 ft-lbs (10mm drive, M6x1.0 thread). For the front cover, plan for a 10mm tool on a M6x1.0 stud; final torque is 8.7 ft-lbs (timing cover bolt). Oil drain plug tightens to 33 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads, located at the oil pan. The connecting rod bolt uses a 12mm drive on a M8x1.0 thread, torqued to Stage 1: 14 ft-lbs, Stage 2: +90° at the engine. At the block, the starter bolt torques to 16 ft-lbs (12mm drive, M8x1.25 thread). For the cylinder head, plan for a 5/8" tool on a M14x1.25 stud; final torque is 13 ft-lbs (spark plug). Cylinder head bolt tightens to Stage 1: 22 ft-lbs, Stage 2: +90°, Stage 3: +90°, takes a 14mm driver, runs on M11x1.5 threads, located at the engine.

Drivetrain — 2018 Honda Civic

Drivetrain and driveline fasteners for the 2018 Honda Civic — axle, transmission, and differential plugs. At the front hub/spindle, the axle nut torques to 181 ft-lbs (32mm drive, M24x1.5 thread).

Suspension — 2018 Honda Civic

Suspension and chassis fastener torque for the 2018 Honda Civic — strut, control arm, and sway bar values. For the front strut fork, plan for a 17mm tool on a M12x1.25 stud; final torque is 47 ft-lbs (strut fork bolt). Stabilizer link nut tightens to 29 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the sway bar. The ball joint nut uses a 17mm drive on a M12x1.25 thread, torqued to 32 ft-lbs at the control arm. At the steering knuckle, the tie rod end nut torques to 32 ft-lbs (17mm drive, M12x1.25 thread). For the wheels, plan for a 19mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (wheel lug nut).

Body — 2018 Honda Civic

Body fasteners on the 2018 Honda Civic. Front bumper bolt tightens to 7 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the frame. The door hinge bolt uses a 14mm drive on a M10x1.25 thread, torqued to 27 ft-lbs at the body.

Interior — 2018 Honda Civic

Interior fasteners on the 2018 Honda Civic. The center console bolt uses a 10mm drive on a M6x1.0 thread, torqued to 7 ft-lbs at the floor. At the a-pillar, the a-pillar trim clip torques to Hand Tight (8mm drive, Push-Type thread). For the door panel, plan for a 8mm tool on a Push-Type stud; final torque is Hand Tight (door panel clip). Seat belt anchor bolt tightens to 32 ft-lbs, takes a 17mm driver, runs on M12x1.25 threads, located at the b-pillar. The dashboard brace bolt uses a 10mm drive on a M6x1.0 thread, torqued to 7 ft-lbs at the frame. At the floor, the seat track bolt torques to 29 ft-lbs (14mm drive, M10x1.25 thread).

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