| THREAD SIZE AND SERIES/TYPE DESIGNATOR | 20.0 MM ISO M |
| THREAD STRUCTURE | REGULAR |
| THREAD FORMING METHOD | GROUND |
| STARTING CHAMFER TYPE | PLUG |
| MATERIAL AND LOCATION | STEEL, HIGH SPEED OVERALL |
| STYLE DESIGNATOR | STRAIGHT FLUTE |
| THREAD LENGTH | 50.800 MILLIMETERS NOMINAL |
| SHANK DIAMETER | 16.560 MILLIMETERS NOMINAL |
| WIDTH ACROSS FLATS | 12.420 MILLIMETERS NOMINAL |
| OVERALL LENGTH | 113.500 MILLIMETERS NOMINAL |
| SQUARE END LENGTH | 17.460 MILLIMETERS NOMINAL |
| THREAD PITCH IN MILLIMETERS | 2.50 |
| THREAD DIRECTION | RIGHT-HAND |
| FLUTE QUANTITY | 4 |
| SPECIFICATION/STANDARD DATA | 05047-ASME B94.9 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |