| THREAD SERIES DESIGNATOR | M |
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 1.25 |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 25.6 MILLIMETERS NOMINAL |
| FASTENER LENGTH | 30.0 MILLIMETERS NOMINAL |
| MATERIAL | STEEL PROPERTY CLASS 10.9 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F568M AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | FM100, D60, TYPE I MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| COLOR | BLACK OVERALL |
| HEAD STYLE | FLAT COUNTERSUNK |
| HEAD DIAMETER | 15.57 MILLIMETERS MINIMUM AND |
| 16.00 MILLIMETERS MAXIMUM |
| COUNTERSINK ANGLE | 90.0 DEGREES NOMINAL |
| INTERNAL DRIVE STYLE | HEXAGON |
| WIDTH ACROSS FLATS | 5.02 MILLIMETERS MINIMUM AND |
| 5.14 MILLIMETERS MAXIMUM |
| LOCKING FEATURE | MATERIAL IN THREADS THREADS |