| THREAD SERIES DESIGNATOR | M |
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| THREAD PITCH IN MILLIMETERS | 1.25 |
| EXTERNAL THREAD TOLERANCE CLASS | 8G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 55.0 MILLIMETERS NOMINAL |
| FASTENER LENGTH | 55.0 MILLIMETERS NOMINAL |
| MATERIAL | STEEL OVERALL |
| HEAD STYLE | ROUND |
| HEAD DIAMETER | 19.3 MILLIMETERS MINIMUM AND |
| 20.6 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 4.1 MILLIMETERS MINIMUM AND |
| 4.8 MILLIMETERS MAXIMUM |
| NECK LENGTH | 4.4 MILLIMETERS MINIMUM AND |
| 5.6 MILLIMETERS MAXIMUM |
| NECK WIDTH | 7.4 MILLIMETERS MINIMUM AND |
| 8.0 MILLIMETERS MAXIMUM |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | CARRIAGE BOLT |