This is a table of various bolt sizes and thread pitches for Honda and Acura nuts, bolts and other fasteners. This is a compilation from various sources, and should be double-checked before using this info to make major decisions. If you have any corrections or additions, please let me know.
|
Thread Pitch |
Head Size |
Application |
| M4 x 0.7 | 8mm | All common 8mm nuts and bolts |
| M6 x 1.0 | 10mm | All common 10mm nuts and bolts |
| M8 x 1.25 | 12mm | All common 12mm nuts and bolts |
| M10 x 1.25 | 14mm | All common 14mm nuts and bolts |
| M12 x 1.25 | 17mm | All common 17mm nuts and bolts |
| M14 x 1.5 | 19mm | All common 19mm nuts and bolts |
| M5 x 0.8 | Screw | Under hood fuse box screw |
| M6 x 1.0 | 11mm | Throttle rotor nut |
| M10 x 1.0 | 14mm | Brake caliper banjo bolts |
| M10 x 1.25 | D series head bolt | |
| M10 x 1.5 | Shift knob | |
| M11 x 1.25 | F and H series timing belt tensioner bolt | |
| M11 x 1.5 | B series head bolt | |
| M12 x 1.0 | 17mm | Flywheel bolt
Shift fork ball spring bolt Trans case bolts that hold spring & bearing |
| M12 x 1.25 | Fuel rail fitting (from fuel filter) | |
| M12 x 1.5 | 19mm
14mm |
Lug nuts
H series head bolt |
| M14 x 1.25 | Spark plug
B and D series crank pulley bolt |
|
| M14 x 1.5 | 17mm | Oil pan & transmission drain plug |
| M16 x 1.5 | H series crank pulley bolt
Oil cooler water line into block |
|
| M18 x 1.5 | 22mm | Oxygen sensor |
| M20 x 1.0 | 10mm Allen bolt
Water pipe to heater valve |
|
| M20 x 1.5 | Oil filter | |
| M28 x 1.5 | 14mm Allen bolt | |
| 1/8 BSPT | Oil pressure sensor |
