| EXTENDED WASHER DIAMETER | 43.0 MILLIMETERS MAXIMUM |
| FASTENER LENGTH | 160.0 MILLIMETERS NOMINAL |
| HEAD HEIGHT | 17.1 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F568M, CLASS 10.9 AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL |
| NOMINAL THREAD DIAMETER | 20.0 MILLIMETERS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | ASTM F2833 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 160.0 MILLIMETERS NOMINAL |
| THREAD PITCH IN MILLIMETERS | 2.5 |
| THREAD SERIES DESIGNATOR | M |
| WIDTH BETWEEN FLATS | 26.67 MILLIMETERS MINIMUM AND 27.00 MILLIMETERS MAXIMUM |