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)

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).

Wheels — 1993 Honda Civic

Wheel and lug nut spec for the 1993 Honda Civic. Lug nut tightens to 80 ft-lbs, takes a 19mm driver, runs on M12x1.5 threads, located at the wheel hub.

Brakes — 1993 Honda Civic

Brake fasteners on the 1993 Honda Civic — caliper bracket, slide pins, and banjo bolt torque follow. The caliper slide pin uses a 12mm drive on a M10x1.25 thread, torqued to 25 ft-lbs at the front brake caliper. At the front brake caliper bracket, the front caliper bracket bolt torques to 80 ft-lbs (17mm drive, M12x1.25 thread).

Engine — 1993 Honda Civic

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

Drivetrain — 1993 Honda Civic

Drivetrain and driveline fasteners for the 1993 Honda Civic — axle, transmission, and differential plugs. For the front hub/spindle, plan for a 32mm tool on a M24x1.5 stud; final torque is 134 ft-lbs (181 Nm) (axle/hub nut). This figure is independently verified against OEM service data.

Suspension — 1993 Honda Civic

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

Steering — 1993 Honda Civic

Steering linkage fasteners on the 1993 Honda Civic. The tie rod end nut uses a 17mm drive on a M12x1.25 thread, torqued to 40 ft-lbs at the tie rod end.

Wheel — 1993 Honda Civic

Wheel fasteners on the 1993 Honda Civic. 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 8mm tool on a N/A stud; final torque is 35 in-lbs (tpms valve stem nut). Wheel weight clip tightens to N/A, takes a N/A driver, runs on N/A threads, located at the wheel rim. The wheel stud uses a N/A drive on a M12x1.5 thread, torqued to N/A at the wheel hub.

Transmission — 1993 Honda Civic

Transmission fasteners on the 1993 Honda Civic. For the bearing support, plan for a 14mm tool on a M10x1.25 stud; final torque is 29 ft-lbs (intermediate shaft bolt). Transmission crossmember bolt tightens to 47 ft-lbs, takes a 14mm driver, runs on M10x1.25 threads, located at the chassis. The shift cable bracket bolt uses a 10mm drive on a M8x1.25 thread, torqued to 16 ft-lbs at the trans case. At the trans mount, the transmission mount bolt torques to 47 ft-lbs (17mm drive, M12x1.5 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). Confirmed against manufacturer service literature. 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 trans pan, the transmission drain plug torques to 29 ft-lbs (17mm drive, M14x1.5 thread).

Brake — 1993 Honda Civic

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

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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