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==== Nut and Bolt Table ====
==== Nut and Bolt Table ====


| Location | Size | Pitch | Thread Length (Shoulder Length) |
{| class="wikitable"
More Details | Years |
! Location
|---|---|---|---|---|---|
! Size
| Engine | |||||
! Pitch
| Upper rear timing cover | M6 | 1.0 | 10mm (none) | Bolt + split washer | All |
! Thread Length<br />(Shoulder Length)
| Distributor bracket | M6 | 1.0 | 20mm (none) | Bolt | All |
! More Details
| Distributor cap | M4 | 0.75 | 25mm (none) | Bolt | All |
! Years
| Harmonic balancer to crank | M10 | 1.0 | 120mm | Bolt + flat washer | 84-87 |
|-
| Harmonic balancer to crank | M12 | 1.25 | ? | Bolt + flat washer | 88-89 |
! colspan="6" style="text-align:left" | Engine
| Pulleys to harmonic balancer | M6 | 1.0 | 15mm | Bolt + split washer | All |
|-
| Timing belt tensioner | M10 | 1.25 | Nut + flat washer | All | |
| Upper rear timing cover
| CHTS | M12 | 1.25 | All | ||
| M6
| Engine (Accessories) | |||||
| 1.0
| Alternator bracket to block | M10 | 1.5 | 60mm | Bolt + split washer | 87-89 |
| 10mm (none)
| Alternator adjuster to block | M8 | 1.25 | 25mm (40mm) | Bolt + split + flat washer | All |
| Bolt + split washer
| Alternator to bracket | M8 | 1.25 | 20mm | Bolt | All |
| All
| A/C bracket to block | M10 | 1.5 | 25mm (20mm) | Bolt | All |
|-
| A/C bracket to block | M8 | 1.25 | 25mm (90mm) | Bolt | All |
| Distributor bracket
| Upper P/S pump bracket | M8 | 1.25 | 35mm | Bolt + split washer | All |
| M6
| Lower P/S pump bracket | M10 | 1.5 | 20mm | Bolt + flat washer | 84-86 |
| 1.0
| Front-right hoist bracket | M8 | 1.25 | 50mm | Bolt + split washer | All |
| 20mm (none)
| Front-right hoist bracket | M8 | 1.25 | 16mm | Bolt + split washer | All |
| Bolt
| Motor mount bracket to block | M10 | 1.5 | 20mm | Bolt + split washer | All |
| All
| Motor mount stabilizer to bracket | M10 | 1.5 | 25mm | Bolt + split washer | All |
|-
| Motor mount stabilizer to block | M10 | 1.5 | 20mm | Bolt + split washer | All |
| Distributor cap
| Engine (Cooling) | |||||
| M4
| Filler neck | M8 | 1.25 | 50mm (?) | Bolt + split + flat washer | All |
| 0.75
| T-stat housing | M8 | 1.25 | 72mm (?) | Bolt + split + flat washer | All |
| 25mm (none)
| T-stat housing cover | M8 | 1.25 | 34mm | Bolt + split + flat washer | All |
| Bolt
| Water pump pulley | M6 | 1.0 | Stud + split washer + nut | All | |
| All
| Filler neck to heater tube flange | M6 | 1.0 | 18mm (none) | Bolt + split washer | All |
|-
| Heater tube front+rear flange | M6 | 1.0 | 18mm (none) | Bolt + split washer | All |
| Harmonic balancer to crank
| Heater tube hold-down | M6 | 1.0 | 14mm (none) | Bolt + split washer | All |
| M10
| Engine (Lubrication) | |||||
| 1.0
| Oil pump | M6 | 1.0 | 20mm | Bolt + split washer | All |
| 120mm
| M6 | 1.0 | 30mm | Bolt + split washer | All | |
| Bolt + flat washer
| Oil pan | M6 | 1.0 | 14mm (none) | Bolt + split washer | All |
| 84-87
| Oil temp sensor bung | M16 | 1.5 | All (turbo) | ||
|-
| Oil sender port | 1/8" | BSPT | All | ||
| Harmonic balancer to crank
| Engine (Induction) | |||||
| M12
| Fuel pressure regulator | M6 | 1.0 | 12mm | Bolt + split washer | All |
| 1.25
| Pop-off valve port | 1" | NPT | All | ||
| ?
| EGR valve to intake | M8 | 1.25 | Stud + split washer + nut | All | |
| Bolt + flat washer
| Throttle body to plenum | M8 | 1.25 | 40mm (10mm) | Bolt + split washer | All |
| 88-89
| Upper plenum to lower | M8 | 1.25 | 40mm (10mm) | Bolt + split washer | All |
|-
| Injector retainer | M6 | 1.0 | 30mm (none) | Bolt | All |
| Pulleys to harmonic balancer
| Engine (Exhaust) | |||||
| M6
| Exhaust manifold | M8 | 1.25 | Stud | 84-87 | |
| 1.0
| Exhaust manifold | M10 | 1.25 | 30mm | Bolt | 88-89 |
| 15mm
| Turbine to downpipe | M10 | 1.5 | Stud | All | |
| Bolt + split washer
| Downpipe to exhaust | M10 | 1.25 | Stud | All | |
| All
| EGR manifold bung | M22 | 1.5 | All | ||
|-
| Transmission / Driveshaft | |||||
| Timing belt tensioner
| Transmission mount to body | M10 | 1.5 | 20mm | Bolt | All |
| M10
| Transmission mount to isolator | M10 | 1.25 | 20mm (90mm) | Bolt | All |
| 1.25
| Driveshaft to differential | M10 | 1.25 | 30mm | Bolt | All (turbo) |
|
| Front Suspension | |||||
| Nut + flat washer
| Tie rod end | M14 | 1.5 | Castle nut | All | |
| All
| Steering rack to crossmember | M12 | 1.25 | 30mm | Bolt | All |
|-
| Knuckle to strut | M12 | 1.25 | 40mm | Bolt | All |
| CHTS
| Caliper to strut | M12 | 1.25 | 40mm | Bolt | All |
| M12
| Tension rod bracket | M10 | 1.25 | 25mm | Bolt | All |
| 1.25
| Tension rod studs | M10 | 1.5 | Nut | 84-87 | |
|
| Tension rod studs | M12 | 1.5 | Nut | 88-89 | |
|
| Rear Suspension | |||||
| All
| Shock to lower mount | M12 | 1.25 | ? | Bolt | All |
|-
| M12 | 1.25 | 40mm (80mm) | Prev-torq nylock nuts | All | |
! colspan="6" style="text-align:left" | Engine (Accessories)
| Shock upper mount to body | M10 | 1.25 | Prev-torq nuts | All | |
|-
| Differential cover | M8 | 1.25 | 25mm | Bolt | All |
| Alternator bracket to block
| Differential mount to body | M10 | 1.5 | 60mm | Bolt | All |
| M10
| M12 | 1.25 | Nut | All | ||
| 1.5
| Differential mount to body | M10 | 1.5 | 60mm | Bolt | All |
| 60mm
| Differential to bracket | M14 | 1.5/2.0 | Stud | All | |
| Bolt + split washer
| M14 | 1.5 | Nut | All | ||
| 87-89
| Differential to crossmember | M12 | 1.25 | 25mm (150mm) | Bolt | All |
|-
| Body | |||||
| Alternator adjuster to block
| Front bumper cover | M6 | 1.0 | Prev-torq nuts | All | |
| M8
| Rear bumper cover | M5 | 1.0 | Prev-torq nuts | All | |
| 1.25
| Interior | |||||
| 25mm (40mm)
| Seat bracket | M10 | 1.5 | 25mm | Bolt | All |
| Bolt + split + flat washer
| Miscellaneous | |||||
| All
| Acorn nut | M12 | 1.25 | 60° taper | 84-86 | |
|-
| Lug nut | M12 | 1.25 | 60° taper | 87-89 |
| Alternator to bracket
| M8
| 1.25
| 20mm
| Bolt
| All
|-
| A/C bracket to block
| M10
| 1.5
| 25mm (20mm)
| Bolt
| All
|-
| A/C bracket to block
| M8
| 1.25
| 25mm (90mm)
| Bolt
| All
|-
| Upper P/S pump bracket
| M8
| 1.25
| 35mm
| Bolt + split washer
| All
|-
| Lower P/S pump bracket
| M10
| 1.5
| 20mm
| Bolt + flat washer
| 84-86
|-
| Front-right hoist bracket
| M8
| 1.25
| 50mm
| Bolt + split washer
| All
|-
| Front-right hoist bracket
| M8
| 1.25
| 16mm
| Bolt + split washer
| All
|-
| Motor mount bracket to block
| M10
| 1.5
| 20mm
| Bolt + split washer
| All
|-
| Motor mount stabilizer to bracket
| M10
| 1.5
| 25mm
| Bolt + split washer
| All
|-
| Motor mount stabilizer to block
| M10
| 1.5
| 20mm
| Bolt + split washer
| All
|-
! colspan="6" style="text-align:left" | Engine (Cooling)
|-
| Filler neck
| M8
| 1.25
| 50mm (?)
| Bolt + split + flat washer
| All
|-
| T-stat housing
| M8
| 1.25
| 72mm (?)
| Bolt + split + flat washer
| All
|-
| T-stat housing cover
| M8
| 1.25
| 34mm
| Bolt + split + flat washer
| All
|-
| Water pump pulley
| M6
| 1.0
|
| Stud + split washer + nut
| All
|-
| Filler neck to heater tube flange
| M6
| 1.0
| 18mm (none)
| Bolt + split washer
| All
|-
| Heater tube front+rear flange
| M6
| 1.0
| 18mm (none)
| Bolt + split washer
| All
|-
| Heater tube hold-down
| M6
| 1.0
| 14mm (none)
| Bolt + split washer
| All
|-
! colspan="6" style="text-align:left" | Engine (Lubrication)
|-
| Oil pump
| M6
| 1.0
| 20mm
| Bolt + split washer
| All
|-
|
| M6
| 1.0
| 30mm
| Bolt + split washer
| All
|-
| Oil pan
| M6
| 1.0
| 14mm (none)
| Bolt + split washer
| All
|-
| Oil temp sensor bung
| M16
| 1.5
|
|
| All (turbo)
|-
| Oil sender port
| 1/8"
| BSPT
|
|
| All
|-
! colspan="6" style="text-align:left" | Engine (Induction)
|-
| Fuel pressure regulator
| M6
| 1.0
| 12mm
| Bolt + split washer
| All
|-
| Pop-off valve port
| 1"
| NPT
|
|
| All
|-
| EGR valve to intake
| M8
| 1.25
|
| Stud + split washer + nut
| All
|-
| Throttle body to plenum
| M8
| 1.25
| 40mm (10mm)
| Bolt + split washer
| All
|-
| Upper plenum to lower
| M8
| 1.25
| 40mm (10mm)
| Bolt + split washer
| All
|-
| Injector retainer
| M6
| 1.0
| 30mm (none)
| Bolt
| All
|-
! colspan="6" style="text-align:left" | Engine (Exhaust)
|-
| Exhaust manifold
| M8
| 1.25
|
| Stud
| 84-87
|-
| Exhaust manifold
| M10
| 1.25
| 30mm
| Bolt
| 88-89
|-
| Turbine to downpipe
| M10
| 1.5
|
| Stud
| All
|-
| Downpipe to exhaust
| M10
| 1.25
|
| Stud
| All
|-
| EGR manifold bung
| M22
| 1.5
|
|
| All
|-
! colspan="6" style="text-align:left" | Transmission / Driveshaft
|-
| Transmission mount to body
| M10
| 1.5
| 20mm
| Bolt
| All
|-
| Transmission mount to isolator
| M10
| 1.25
| 20mm (90mm)
| Bolt
| All
|-
| Driveshaft to differential
| M10
| 1.25
| 30mm
| Bolt
| All (turbo)
|-
! colspan="6" style="text-align:left" | Front Suspension
|-
| Tie rod end
| M14
| 1.5
|
| Castle nut
| All
|-
| Steering rack to crossmember
| M12
| 1.25
| 30mm
| Bolt
| All
|-
| Knuckle to strut
| M12
| 1.25
| 40mm
| Bolt
| All
|-
| Caliper to strut
| M12
| 1.25
| 40mm
| Bolt
| All
|-
| Tension rod bracket
| M10
| 1.25
| 25mm
| Bolt
| All
|-
| Tension rod studs
| M10
| 1.5
|
| Nut
| 84-87
|-
| Tension rod studs
| M12
| 1.5
|
| Nut
| 88-89
|-
! colspan="6" style="text-align:left" | Rear Suspension
|-
| Shock to lower mount
| M12
| 1.25
| ?
| Bolt
| All
|-
|
| M12
| 1.25
| 40mm (80mm)
| Prev-torq nylock nuts
| All
|-
| Shock upper mount to body
| M10
| 1.25
|
| Prev-torq nuts
| All
|-
| Differential cover
| M8
| 1.25
| 25mm
| Bolt
| All
|-
| Differential mount to body
| M10
| 1.5
| 60mm
| Bolt
| All
|-
|
| M12
| 1.25
|
| Nut
| All
|-
| Differential mount to body
| M10
| 1.5
| 60mm
| Bolt
| All
|-
| Differential to bracket
| M14
| 1.5/2.0
|
| Stud
| All
|-
|
| M14
| 1.5
|
| Nut
| All
|-
| Differential to crossmember
| M12
| 1.25
| 25mm (150mm)
| Bolt
| All
|-
! colspan="6" style="text-align:left" | Body
|-
| Front bumper cover
| M6
| 1.0
|
| Prev-torq nuts
| All
|-
| Rear bumper cover
| M5
| 1.0
|
| Prev-torq nuts
| All
|-
! colspan="6" style="text-align:left" | Interior
|-
| Seat bracket
| M10
| 1.5
| 25mm
| Bolt
| All
|-
! colspan="6" style="text-align:left" | Miscellaneous
|-
| Acorn nut
| M12
| 1.25
|
| 60° taper
| 84-86
|-
| Lug nut
| M12
| 1.25
|
| 60° taper
| 87-89
|}


[[Category:Imported from Xenonzcar]]
[[Category:Imported from Xenonzcar]]

Revision as of 22:07, 20 October 2026

Imported page. This page was converted from an archived copy of "Z31 Nut and Bolt List" (Xenonzcar, fetched 2026-05-15). The conversion was mechanical, so tables, links and formatting may contain conversion artefacts. Compare against the archived copy if something looks wrong. The content belongs to its original authors.

Z31 Nut and Bolt List

Nut and Bolt Table

Location Size Pitch Thread Length
(Shoulder Length) 		More Details Years
Engine
Upper rear timing cover M6 1.0 10mm (none) Bolt + split washer All
Distributor bracket M6 1.0 20mm (none) Bolt All
Distributor cap M4 0.75 25mm (none) Bolt All
Harmonic balancer to crank M10 1.0 120mm Bolt + flat washer 84-87
Harmonic balancer to crank M12 1.25 ? Bolt + flat washer 88-89
Pulleys to harmonic balancer M6 1.0 15mm Bolt + split washer All
Timing belt tensioner M10 1.25 Nut + flat washer All
CHTS M12 1.25 All
Engine (Accessories)
Alternator bracket to block M10 1.5 60mm Bolt + split washer 87-89
Alternator adjuster to block M8 1.25 25mm (40mm) Bolt + split + flat washer All
Alternator to bracket M8 1.25 20mm Bolt All
A/C bracket to block M10 1.5 25mm (20mm) Bolt All
A/C bracket to block M8 1.25 25mm (90mm) Bolt All
Upper P/S pump bracket M8 1.25 35mm Bolt + split washer All
Lower P/S pump bracket M10 1.5 20mm Bolt + flat washer 84-86
Front-right hoist bracket M8 1.25 50mm Bolt + split washer All
Front-right hoist bracket M8 1.25 16mm Bolt + split washer All
Motor mount bracket to block M10 1.5 20mm Bolt + split washer All
Motor mount stabilizer to bracket M10 1.5 25mm Bolt + split washer All
Motor mount stabilizer to block M10 1.5 20mm Bolt + split washer All
Engine (Cooling)
Filler neck M8 1.25 50mm (?) Bolt + split + flat washer All
T-stat housing M8 1.25 72mm (?) Bolt + split + flat washer All
T-stat housing cover M8 1.25 34mm Bolt + split + flat washer All
Water pump pulley M6 1.0 Stud + split washer + nut All
Filler neck to heater tube flange M6 1.0 18mm (none) Bolt + split washer All
Heater tube front+rear flange M6 1.0 18mm (none) Bolt + split washer All
Heater tube hold-down M6 1.0 14mm (none) Bolt + split washer All
Engine (Lubrication)
Oil pump M6 1.0 20mm Bolt + split washer All
M6 1.0 30mm Bolt + split washer All
Oil pan M6 1.0 14mm (none) Bolt + split washer All
Oil temp sensor bung M16 1.5 All (turbo)
Oil sender port 1/8" BSPT All
Engine (Induction)
Fuel pressure regulator M6 1.0 12mm Bolt + split washer All
Pop-off valve port 1" NPT All
EGR valve to intake M8 1.25 Stud + split washer + nut All
Throttle body to plenum M8 1.25 40mm (10mm) Bolt + split washer All
Upper plenum to lower M8 1.25 40mm (10mm) Bolt + split washer All
Injector retainer M6 1.0 30mm (none) Bolt All
Engine (Exhaust)
Exhaust manifold M8 1.25 Stud 84-87
Exhaust manifold M10 1.25 30mm Bolt 88-89
Turbine to downpipe M10 1.5 Stud All
Downpipe to exhaust M10 1.25 Stud All
EGR manifold bung M22 1.5 All
Transmission / Driveshaft
Transmission mount to body M10 1.5 20mm Bolt All
Transmission mount to isolator M10 1.25 20mm (90mm) Bolt All
Driveshaft to differential M10 1.25 30mm Bolt All (turbo)
Front Suspension
Tie rod end M14 1.5 Castle nut All
Steering rack to crossmember M12 1.25 30mm Bolt All
Knuckle to strut M12 1.25 40mm Bolt All
Caliper to strut M12 1.25 40mm Bolt All
Tension rod bracket M10 1.25 25mm Bolt All
Tension rod studs M10 1.5 Nut 84-87
Tension rod studs M12 1.5 Nut 88-89
Rear Suspension
Shock to lower mount M12 1.25 ? Bolt All
M12 1.25 40mm (80mm) Prev-torq nylock nuts All
Shock upper mount to body M10 1.25 Prev-torq nuts All
Differential cover M8 1.25 25mm Bolt All
Differential mount to body M10 1.5 60mm Bolt All
M12 1.25 Nut All
Differential mount to body M10 1.5 60mm Bolt All
Differential to bracket M14 1.5/2.0 Stud All
M14 1.5 Nut All
Differential to crossmember M12 1.25 25mm (150mm) Bolt All
Body
Front bumper cover M6 1.0 Prev-torq nuts All
Rear bumper cover M5 1.0 Prev-torq nuts All
Interior
Seat bracket M10 1.5 25mm Bolt All
Miscellaneous
Acorn nut M12 1.25 60° taper 84-86
Lug nut M12 1.25 60° taper 87-89
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