| EXTERNAL THREAD TOLERANCE CLASS | 5G6G |
| FASTENER LENGTH | 18.00 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 6.78 MILLIMETERS MINIMUM AND 7.00 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 3.82 MILLIMETERS MINIMUM AND 4.00 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS 6105 A2 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| MINIMUM TENSILE STRENGTH | 700 NEWTONS PER SQUARE MILLIMETER |
| NOMINAL THREAD DIAMETER | 4.00 MILLIMETERS |
| SPECIAL FEATURES | OR KNURLED HEAD STYLE |
| WIDTH ACROSS FLATS | 3.020 MILLIMETERS MINIMUM AND 3.080 MILLIMETERS MAXIMUM |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 18.00 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | ISO M |
| THREAD PITCH IN MILLIMETERS | 0.70 |