1993 Honda Civic Lug Nut Torque & Bolt Specs

The 1993 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 1993 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 1993 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

Heads up for 1993 Honda Civic owners: Vehicles this age frequently have seized fasteners due to thread corrosion. Apply penetrating oil (PB Blaster, Kroil) 24 hours before any wrenching, and have a thread chaser on hand. Lug studs are particularly prone to thread damage at this age; if a nut spins on without engaging, the stud is stretched and must be replaced before the wheel goes back on.

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 1993 Honda Civic?

The OEM-specified lug-nut torque for the 1993 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 1993 Honda Civic lug nuts?

The 1993 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 1993 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.

→ 1993 Honda Civic oil drain plug torque & size

→ 1993 Honda Civic suspension & steering torque specs (control arm, ball joint, tie rod)

→ 1993 Honda Civic axle nut torque spec (CV axle & hub nut)

→ 1993 Honda Civic brake job torque specs (caliper, bracket & slide pins)

All 54 1993 Honda Civic fastener specs

Per-bolt torque, wrench size, and thread spec for the 1993 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. 3 of the 54 fastener specs on this page are independently verified against OEM service manuals and manufacturer torque data (last reviewed June 2026).

Brakes — 1993 Honda Civic

Brake fasteners on the 1993 Honda Civic — caliper bracket, slide pins, and banjo bolt torque follow. Caliper slide pin tightens to 25 ft-lbs, takes a 12mm driver, runs on M10x1.25 threads, located at the front brake 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.

Engine — 1993 Honda Civic

Engine bolt-by-bolt torque for the 1993 Honda Civic, including the long block, valve covers, and intake. The oil pan bolt uses a 10mm drive on a M8x1.25 thread, torqued to 16 ft-lbs at the oil pan. At the timing cover, the timing cover bolt torques to 9 ft-lbs (10mm drive, M8x1.25 thread). For the water pump, plan for a 10mm tool on a M8x1.25 stud; final torque is 9 ft-lbs (water pump bolt). Throttle body bolt tightens to 16 ft-lbs, takes a 10mm driver, runs on M8x1.25 threads, located at the throttle body. The oil filter uses a Oil Filter Wrench drive on a N/A thread, torqued to Hand tight + 3/4 turn at the engine block. Confirmed against manufacturer service literature. At the thermostat housing, the thermostat housing bolt torques to 9 ft-lbs (10mm drive, M8x1.25 thread). For the fuel rail, plan for a 10mm tool on a M8x1.25 stud; final torque is 16 ft-lbs (fuel rail bolt). Exhaust manifold nut tightens to 23 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the exhaust manifold. The cylinder head bolt uses a 14mm drive on a M11x1.5 thread, torqued to Stage 1: 22 ft-lbs, Stage 2: +90°, Stage 3: +90° at the engine. At the engine mount, the engine mount bolt torques to 47 ft-lbs (17mm drive, M12x1.5 thread). For the engine, plan for a 12mm tool on a M8x1.0 stud; final torque is Stage 1: 14 ft-lbs, Stage 2: +90° (connecting rod bolt). Serpentine belt tensioner bolt tightens to 33 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the belt tensioner. The air intake boot clamp uses a 8mm drive on a N/A thread, torqued to Hand tight at the air intake. At the intake manifold, the intake manifold bolt torques to 16 ft-lbs (12mm drive, M8x1.25 thread). For the cylinder head, plan for a 5/8" tool on a 14mm stud; final torque is 13 ft-lbs (spark plug). Valve cover bolt tightens to 7 ft-lbs, takes a 10mm driver, runs on M6x1.0 threads, located at the valve cover. The oil drain plug uses a 17mm drive on a M14x1.5 thread, torqued to 29 ft-lbs (39 Nm) at the oil pan. At the alternator bracket, the alternator bolt torques to 33 ft-lbs (14mm drive, M10x1.25 thread).

Drivetrain — 1993 Honda Civic

Drivetrain and driveline fasteners for the 1993 Honda Civic — axle, transmission, and differential plugs. At the front hub/spindle, the axle/hub nut torques to 134 ft-lbs (181 Nm) (32mm drive, M24x1.5 thread). Confirmed against manufacturer service literature.

Suspension — 1993 Honda Civic

Suspension and chassis fastener torque for the 1993 Honda Civic — strut, control arm, and sway bar values. For the lower control arm, plan for a 17mm tool on a M12x1.5 stud; final torque is 61 ft-lbs (lower control arm bolt). Ball joint castle nut tightens to 40 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads, located at the ball joint. The steering rack bolt uses a 14mm drive on a M10x1.25 thread, torqued to 29 ft-lbs at the subframe. At the knuckle, the strut pinch bolt torques to 116 ft-lbs (17mm drive, M12x1.5 thread). For the chassis, plan for a 19mm tool on a M14x1.5 stud; final torque is 76 ft-lbs (front subframe bolt). Strut tower nut tightens to 28 ft-lbs, takes a 12mm driver, runs on M8x1.25 threads, located at the strut tower. The sway bar end link nut uses a 14mm drive on a M10x1.25 thread, torqued to 29 ft-lbs at the sway bar link. At the subframe, the sway bar bracket bolt torques to 16 ft-lbs (12mm drive, M8x1.25 thread). For the front strut mount, plan for a 17mm tool on a M10x1.25 stud; final torque is 32 ft-lbs (front strut top nut). Strut top nut tightens to 43 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads, located at the strut tower.

Steering — 1993 Honda Civic

Steering linkage fasteners on the 1993 Honda Civic. Tie rod end nut tightens to 40 ft-lbs, takes a 17mm driver, runs on M12x1.25 threads, located at the tie rod end.

Wheel — 1993 Honda Civic

Wheel fasteners on the 1993 Honda Civic. The wheel stud uses a N/A drive on a M12x1.5 thread, torqued to N/A at the wheel hub. At the wheel center, the center cap clip torques to N/A (N/A drive, N/A thread). For the wheel rim, plan for a N/A tool on a N/A stud; final torque is N/A (wheel weight clip). Lug nut tightens to 80 ft-lbs (108 Nm), takes a 19mm driver, runs on M12x1.5 threads, located at the wheel assembly. The tpms valve stem nut uses a 8mm drive on a N/A thread, torqued to 35 in-lbs at the wheel rim.

Transmission — 1993 Honda Civic

Transmission fasteners on the 1993 Honda Civic. At the trans case, the shift cable bracket bolt torques to 16 ft-lbs (10mm drive, M8x1.25 thread). For the front hub, plan for a 32mm tool on a M24x1.5 stud; final torque is 134 ft-lbs (181 Nm) (axle nut). OEM-verified spec. Transmission fill plug tightens to 29 ft-lbs, takes a 17mm driver, runs on M14x1.5 threads, located at the transmission. The cv joint clamp uses a Pliers drive on a N/A thread, torqued to Hand tight at the cv boot. At the bearing support, the intermediate shaft bolt torques to 29 ft-lbs (14mm drive, M10x1.25 thread). For the chassis, plan for a 14mm tool on a M10x1.25 stud; final torque is 47 ft-lbs (transmission crossmember bolt). Transmission mount bolt tightens to 47 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads, located at the trans mount. The transmission drain plug uses a 17mm drive on a M14x1.5 thread, torqued to 29 ft-lbs at the trans pan.

Brake — 1993 Honda Civic

Brake fasteners on the 1993 Honda Civic. For the rear caliper, plan for a 10mm tool on a M8x1.25 stud; final torque is 16 ft-lbs (parking brake cable bolt). Caliper mounting bolt tightens to 80 ft-lbs, takes a 17mm driver, runs on M12x1.5 threads, located at the brake caliper. The brake hose banjo bolt uses a 10mm drive on a M10x1.0 thread, torqued to 25 ft-lbs at the brake caliper. At the brake rotor, the brake rotor set screw torques to 84 in-lbs (Phillips drive, M6x1.0 thread). For the brake booster, plan for a 12mm tool on a M8x1.25 stud; final torque is 11 ft-lbs (master cylinder nut). Brake line flare nut tightens to 11 ft-lbs, takes a 10mm driver, runs on M10x1.0 threads, located at the brake lines. The abs sensor bolt uses a 8mm drive on a M6x1.0 thread, torqued to 7 ft-lbs at the wheel hub. At the caliper bracket, the caliper guide pin torques to 25 ft-lbs (14mm drive, M10x1.25 thread). For the knuckle, plan for a 17mm tool on a M12x1.5 stud; final torque is 80 ft-lbs (caliper bracket bolt).

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 1993 Honda Civic numbers above.

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