| COLOR | BLACK OVERALL |
| FASTENER LENGTH | 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM |
| HARDNESS RATING | 39.0 ROCKWELL C MINIMUM AND 44.0 ROCKWELL C MAXIMUM OVERALL |
| HEAD DIAMETER | 12.73 MILLIMETERS MINIMUM AND 13.27 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 7.64 MILLIMETERS MINIMUM AND 8.00 MILLIMETERS MAXIMUM |
| HEAD STYLE | FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | ISO 898 CLASS 12.9 INTERNATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 177000 POUNDS PER SQUARE INCH |
| MINIMUM YIELD STRENGTH | 1100 MEGAPASCALS |
| NOMINAL THREAD DIAMETER | 8.0 MILLIMETERS |
| SPECIAL FEATURES | FINISH IS THERMAL OR CHEMICAL BLACK OXIDE. |
| WIDTH ACROSS FLATS | 6.020 MILLIMETERS MINIMUM AND 6.140 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT | OXIDE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 22.00 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | M |
| THREAD PITCH IN MILLIMETERS | 1.25 |