| EXTERNAL THREAD TOLERANCE CLASS | 6G |
| FASTENER LENGTH | 29.58 MILLIMETERS MINIMUM AND 30.42 MILLIMETERS MAXIMUM |
| GRIP LENGTH | 12.00 MILLIMETERS NOMINAL |
| HARDNESS RATING | 225.0 BRINELL STANDARD MINIMUM AND 300.0 BRINELL STANDARD MAXIMUM OVERALL |
| HEAD HEIGHT | 3.85 MILLIMETERS MINIMUM AND 4.15 MILLIMETERS MAXIMUM |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 785 NEWTONS PER SQUARE MILLIMETER |
| NOMINAL THREAD DIAMETER | 6.00 MILLIMETERS |
| SPECIAL FEATURES | TOP FACE OF HEAD MARKED 'ISO M';STRENGTH GRADE 8.8 |
| WIDTH BETWEEN FLATS | 9.78 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | BS 3189 CLASS A1 NATIONAL STD/SPEC ALL TREATMENT RESPONSES OVERALL |
| SURFACE TREATMENT | PHOSPHATE AND CHROMATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 18.00 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM |
| THREAD SERIES DESIGNATOR | ISO M |
| THREAD PITCH IN MILLIMETERS | 1.00 |