| EXTERNAL THREAD TOLERANCE CLASS | 4G6G |
| FASTENER LENGTH | 160.0 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 17.6 MILLIMETERS MINIMUM AND 18.0 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 11.7 MILLIMETERS MINIMUM AND 12.0 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| INTERNAL DRIVE STYLE | HEXAGON |
| NOMINAL THREAD DIAMETER | 12.0 MILLIMETERS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW CAP HEXAGON SOCKET HEAD (METRIC) |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 36.0 MILLIMETERS MINIMUM AND 44.8 MILLIMETERS MAXIMUM |
| THREAD PITCH IN MILLIMETERS | 1.75 |
| THREAD SERIES DESIGNATOR | ISO M |
| WIDTH ACROSS FLATS | 12.03 MILLIMETERS MINIMUM AND 12.14 MILLIMETERS MAXIMUM |