| EXTENDED WASHER DIAMETER | 29.550 MILLIMETERS MINIMUM AND 29.920 MILLIMETERS MAXIMUM |
| EXTENDED WASHER THICKNESS | 8.500 MILLIMETERS MINIMUM AND 9.000 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 140.000 MILLIMETERS NOMINAL |
| HEAD HEIGHT | 19.670 MILLIMETERS MINIMUM AND 20.000 MILLIMETERS MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| MATERIAL | STEEL PROPERTY CLASS 12.9 OVERALL |
| NOMINAL THREAD DIAMETER | 20.000 MILLIMETERS |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD PITCH IN MILLIMETERS | 2.500 |
| THREAD SERIES DESIGNATOR | M |
| THREAD LENGTH | 52.000 MILLIMETERS MINIMUM |
| WIDTH BETWEEN FLATS | 19.900 MILLIMETERS MINIMUM AND 20.050 MILLIMETERS MAXIMUM |