2018 Honda Civic Lug Nut Torque & Bolt Specs

The 2018 Honda Civic lug nut torque is 80 ft-lbs (108 Nm), 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 (108 Nm) · 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.

Tenth generation (FC/FK, 2016–2021)

The 2018 Civic is the tenth-generation 'FC/FK' car (2016–2021), a ground-up redesign offered with a 158-hp 2.0-liter naturally aspirated four or a 174-hp turbocharged 1.5-liter (the Si turbocharges the 1.5 and the Type R the 2.0).

The turbo 1.5's downpipe and charge-pipe fasteners sit in tight, hot quarters and back off if under-torqued, so torque them to spec rather than by feel. Honda still uses the 19mm lug socket that catches out techs expecting 21mm, and the oil-drain crush washer remains single-use.

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 (108 Nm), 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.

→ 2018 Honda Civic oil drain plug torque & size

→ 2018 Honda Civic suspension & steering torque specs (control arm, ball joint, tie rod)

→ 2018 Honda Civic brake job torque specs (caliper, bracket & slide pins)

→ Full 2018 Honda Civic maintenance schedule (intervals, costs & free tracker) on ServiceSageAuto

All 50 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. 7 of the 50 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

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). Confirmed against manufacturer service literature.

Brakes — 2018 Honda Civic

Brake fasteners on the 2018 Honda Civic — caliper bracket, slide pins, and banjo bolt torque follow. Front caliper bracket bolt tightens to 80 ft-lbs (108 Nm), takes a 17mm driver, runs on M12x1.25 threads, located at the front brake caliper bracket. This figure is independently verified against OEM service data. The brake caliper bolt uses a 14mm drive on a M12x1.25 thread, torqued to 22 ft-lbs at the caliper. At the front caliper, the front brake caliper pin bolt torques to 23 ft-lbs (31 Nm) (13mm drive, M8x1.25 thread). Confirmed against manufacturer service literature. For the hub, plan for a 5mm tool on a M5x0.8 stud; final torque is 4 ft-lbs (rotor set screw). Caliper bracket bolt tightens to 80 ft-lbs (108 Nm), takes a 14mm driver, runs on M12x1.25 threads, located at the steering knuckle. OEM-verified spec. The brake bleeder valve uses a 8mm drive on a M8x1.0 thread, torqued to 7 ft-lbs 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 spark plug uses a 5/8" drive on a M14x1.25 thread, torqued to 16 ft-lbs (22 Nm) at the cylinder head. OEM-verified spec. At the manifold, the egr valve bolt torques to 15 ft-lbs (12mm drive, M8x1.25 thread). For the cylinder head, plan for a 12mm tool on a M6x1.0 stud; final torque is 15 ft-lbs (cam cap bolt). Radiator mount tightens to 15 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the frame. 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 water pump bolt torques to 15 ft-lbs (12mm drive, M8x1.25 thread). For the oil pan, plan for a 17mm tool on a M12x1.5 stud; final torque is 29 ft-lbs (39 Nm) (oil drain plug). OEM-verified spec. Timing cover bolt tightens to 8.7 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the front cover. The valve cover bolt uses a 10mm drive on a M6x1.0 thread, torqued to 7.2 ft-lbs at the valve cover. At the cylinder head, the vtec solenoid bolt torques to 9 ft-lbs (10mm drive, M6x1.0 thread). For the block, plan for a 12mm tool on a M8x1.25 stud; final torque is 16 ft-lbs (starter bolt). 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. The exhaust manifold bolt uses a 14mm drive on a M10x1.25 thread, torqued to 33 ft-lbs at the head.

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 tie rod end nut uses a 17mm drive on a M12x1.25 thread, torqued to 32 ft-lbs at the steering knuckle. At the strut tower, the strut mount nut torques to 47 ft-lbs (14mm drive, M10x1.25 thread). For the control arm, plan for a 17mm tool on a M12x1.25 stud; final torque is 32 ft-lbs (ball joint nut). Lower ball joint nut tightens to 94 ft-lbs, takes a 19mm driver, runs on M14x2.0 threads, located at the control arm. The sway bar link nut uses a 14mm drive on a M10x1.25 thread, torqued to 29 ft-lbs at the sway bar. At the wheels, the wheel lug nut torques to 80 ft-lbs (108 Nm) (19mm drive, M12x1.5 thread). OEM-verified spec.

Steering — 2018 Honda Civic

Steering linkage fasteners on the 2018 Honda Civic. Steering rack bolt tightens to 74 ft-lbs, takes a 17mm driver, runs on M12x1.25 threads, located at the subframe.

Body — 2018 Honda Civic

Body fasteners on the 2018 Honda Civic. The bumper bolt uses a 12mm drive on a M8x1.25 thread, torqued to 15 ft-lbs at the frame. At the frame, the front bumper bolt torques to 7 ft-lbs (10mm drive, M6x1.0 thread). For the hood, plan for a 12mm tool on a M8x1.25 stud; final torque is 15 ft-lbs (hood hinge bolt). Door hinge bolt tightens to 27 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the body.

Exhaust — 2018 Honda Civic

Exhaust fasteners on the 2018 Honda Civic. At the frame, the muffler hanger bolt torques to 15 ft-lbs (12mm drive, M8x1.25 thread). For the various, plan for a 22mm tool on a M18x1.5 stud; final torque is 30 ft-lbs (o2 sensor). Catalytic bolt tightens to 33 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the cat flange.

Electrical — 2018 Honda Civic

Electrical fasteners on the 2018 Honda Civic. For the bracket, plan for a 15mm tool on a M10x1.5 stud; final torque is 35 ft-lbs (idler pulley bolt). Starter solenoid terminal nut tightens to 70 in-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the solenoid. The alternator b+ terminal nut uses a 13mm drive on a M8x1.25 thread, torqued to 15 ft-lbs at the alternator. At the block/transmission, the starter support bracket bolt torques to 22 ft-lbs (12mm drive, M8x1.25 thread). For the block, plan for a 10mm tool on a M6x1.0 stud; final torque is 8 ft-lbs (starter ground strap bolt). Alternator terminal nut tightens to 70 in-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the alternator.

Interior — 2018 Honda Civic

Interior fasteners on the 2018 Honda Civic. Dashboard brace bolt tightens to 7 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the frame. The seat belt anchor bolt uses a 17mm drive on a M12x1.25 thread, torqued to 32 ft-lbs at the b-pillar. 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 track bolt tightens to 29 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the floor. The center console bolt uses a 10mm drive on a M6x1.0 thread, torqued to 7 ft-lbs at the floor. At the body, the seat belt bolt torques to 47 ft-lbs (17mm drive, M12x1.25 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 2018 Honda Civic numbers above.

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