Thread table
| Values in mm | ||
| Thread dimension | Drill - diameter | Examples of areas of use |
| M6x1 | 6.3 | Oil pump |
| M7x1 | 7.3 | Sump to cylinder block, Intermediate section to cylinder block, Water pump to cylinder block |
| M8x1.25 | 8.4 | Studs at the exhaust ports |
| M10x1.5 | 10.5 | Intermediate section to cylinder block, Gearbox to engine |
| M12x1.5 | 12.5 | |
| M14x1.25 | Spark plugs | |
| M14x1.5 | 14.2 | Oil pressure switch. Oil pressure outlet engine / turbocharger unit. |
| M18x1.5 | 18.5 | Oil drain plug in the sump. |