| FASTENER LENGTH | 40.0 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 15.73 MILLIMETERS MINIMUM AND 16.27 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| HEAD HEIGHT | 9.64 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM |
| INTERNAL DRIVE STYLE | HEXAGON |
| LOCKING FEATURE | MATERIAL IN THREADS THREADS |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F568M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL PROPERTY CLASS 12.9 OVERALL |
| NOMINAL THREAD DIAMETER | 10.0 MILLIMETERS |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | F-100, D60, TYPE I MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD PITCH IN MILLIMETERS | 1.5 |
| THREAD LENGTH | 40.0 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | M |
| WIDTH ACROSS FLATS | 8.03 MILLIMETERS MINIMUM AND 8.18 MILLIMETERS MAXIMUM |