2021 Honda Civic Lug Nut Torque & Bolt Specs

The 2021 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 2021 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 2021 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 2021 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 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 Honda Civic?

The OEM-specified lug-nut torque for the 2021 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 2021 Honda Civic lug nuts?

The 2021 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 2021 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.

→ 2021 Honda Civic oil drain plug torque & size

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

→ 2021 Honda Civic brake job torque specs (caliper, bracket & slide pins)

→ Full 2021 Honda Civic maintenance schedule (intervals, costs & free tracker) on ServiceSageAuto

All 54 2021 Honda Civic fastener specs

Per-bolt torque, wrench size, and thread spec for the 2021 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. 8 of the 54 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Wheels — 2021 Honda Civic

Wheel and lug nut spec for the 2021 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 — 2021 Honda Civic

Brake fasteners on the 2021 Honda Civic — caliper bracket, slide pins, and banjo bolt torque follow. Rotor set screw tightens to 4 ft-lbs, takes a 5mm driver, runs on M5x0.8 threads, located at the hub. The front brake caliper pin bolt uses a 13mm drive on a M8x1.25 thread, torqued to 25 ft-lbs (34 Nm) at the front caliper. OEM-verified spec. At the front brake caliper bracket, the front caliper bracket bolt torques to 80 ft-lbs (108 Nm) (17mm drive, M12x1.25 thread). Confirmed against manufacturer service literature. For the caliper bracket, plan for a 12mm tool on a M8x1.25 stud; final torque is 25 ft-lbs (34 Nm) (caliper guide pin). This figure is independently verified against OEM service data. Wheel lug nut tightens to 80 ft-lbs (108 Nm), takes a 19mm driver, runs on M12 x 1.5 threads, located at the wheel hub. OEM-verified spec. The brake caliper bolt uses a 14mm drive on a M12x1.25 thread, torqued to 22 ft-lbs at the caliper. At the knuckle, the brake caliper bracket torques to 80 ft-lbs (108 Nm) (17mm drive, M12x1.25 thread). This figure is independently verified against OEM service data. For the frame, plan for a 10mm tool on a M6x1.0 stud; final torque is 8 ft-lbs (brake line bracket).

Engine — 2021 Honda Civic

Engine bolt-by-bolt torque for the 2021 Honda Civic, including the long block, valve covers, and intake. The camshaft sprocket bolt uses a 17mm drive on a M12x1.25 thread, torqued to 54 ft-lbs at the camshaft. At the front cover, the timing cover bolt torques to 9 ft-lbs (10mm drive, M6x1.0 thread). For the cylinder head, plan for a 12mm tool on a M6x1.0 stud; final torque is 15 ft-lbs (cam cap bolt). Valve cover bolt tightens to 7.2 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the valve cover. The spark plug uses a 16mm drive on a M14x1.25 thread, torqued to 13 ft-lbs (18 Nm) at the cylinder head. Confirmed against manufacturer service literature. At the oil cooler, the oil cooler line torques to 22 ft-lbs (17mm drive, M12x1.5 thread). For the bracket, plan for a 12mm tool on a M8x1.25 stud; final torque is 18 ft-lbs (alternator bolt). Vtec solenoid bolt tightens to 9 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the cylinder head. The intake manifold bolt uses a 12mm drive on a M8x1.25 thread, torqued to 16 ft-lbs at the head. At the engine, the connecting rod bolt torques to Stage 1: 14 ft-lbs, Stage 2: +90° (12mm drive, M8x1.0 thread). For the turbo, plan for a 10mm tool on a M6x1.0 stud; final torque is 9 ft-lbs (turbo heat shield bolt). Oil drain plug tightens to 30 ft-lbs (41 Nm), takes a 17mm driver, runs on M12x1.5 threads, located at the oil pan. This figure is independently verified against OEM service data. The thermostat housing uses a 10mm drive on a M6x1.0 thread, torqued to 9 ft-lbs at the engine. At the block, the starter bolt torques to 16 ft-lbs (12mm drive, M8x1.25 thread). For the timing cover, plan for a 10mm tool on a M6x1.0 stud; final torque is 9 ft-lbs (chain tensioner 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 water pump bolt uses a 12mm drive on a M8x1.25 thread, torqued to 15 ft-lbs at the block.

Drivetrain — 2021 Honda Civic

Drivetrain and driveline fasteners for the 2021 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 — 2021 Honda Civic

Suspension and chassis fastener torque for the 2021 Honda Civic — strut, control arm, and sway bar values. For the subframe, plan for a 17mm tool on a M12x1.25 stud; final torque is 54 ft-lbs (lower control arm bolt). Wheel hub bolt tightens to 80 ft-lbs, takes a 17mm driver, runs on M12x1.25 threads, located at the knuckle. The strut fork bolt uses a 17mm drive on a M12x1.25 thread, torqued to 47 ft-lbs at the front strut fork. At the subframe, the control arm bolt torques to 85 ft-lbs (19mm drive, M14x2.0 thread).

Steering — 2021 Honda Civic

Steering linkage fasteners on the 2021 Honda Civic. Steering column u-joint tightens to 22 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the column. The power steering pump uses a 12mm drive on a M8x1.25 thread, torqued to 15 ft-lbs at the bracket. At the subframe, the steering rack bolt torques to 74 ft-lbs (17mm drive, M12x1.25 thread).

Body — 2021 Honda Civic

Body fasteners on the 2021 Honda Civic. The door hinge bolt uses a 14mm drive on a M8x1.25 thread, torqued to 16 ft-lbs at the body. 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 16 ft-lbs (hood hinge bolt). Bumper bolt tightens to 15 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the frame.

Exhaust — 2021 Honda Civic

Exhaust fasteners on the 2021 Honda Civic. At the manifold, the exhaust flange bolt torques to 33 ft-lbs (14mm drive, M10x1.25 thread).

Electrical — 2021 Honda Civic

Electrical fasteners on the 2021 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 b+ terminal nut tightens to 15 ft-lbs, takes a 13mm driver, runs on M8x1.25 threads, located at the starter. 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, the alternator ground strap bolt torques to 8 ft-lbs (10mm drive, M6x1.0 thread). For the starter body, plan for a 10mm tool on a M6x1.0 stud; final torque is 8 ft-lbs (starter heat shield bolt). Alternator support bracket bolt tightens to 22 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the block. The starter ground strap bolt uses a 10mm drive on a M6x1.0 thread, torqued to 8 ft-lbs at the block. At the alternator, the alternator terminal nut torques to 70 in-lbs (10mm drive, M6x1.0 thread). For the block, plan for a 15mm tool on a M10x1.5 stud; final torque is 35 ft-lbs (belt tensioner pivot bolt).

Interior — 2021 Honda Civic

Interior fasteners on the 2021 Honda Civic. Seat track bolt tightens to 29 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the floor. 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 floor, the center console bolt torques to 7 ft-lbs (10mm drive, M6x1.0 thread). For the body, plan for a 17mm tool on a M12x1.25 stud; final torque is 47 ft-lbs (seat belt bolt). Headliner clip tightens to Hand Tight, takes a 8mm driver, runs on Push-Type threads, located at the roof.

Transmission — 2021 Honda Civic

Transmission fasteners on the 2021 Honda Civic. The trans cooler line uses a 17mm drive on a M12x1.25 thread, torqued to 22 ft-lbs at the trans case.

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 Honda Civic numbers above.

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