| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| EXTERNAL THREAD TOLERANCE CLASS | 5G6G |
| FASTENER LENGTH | 29.58 MILLIMETERS MINIMUM AND 30.42 MILLIMETERS MAXIMUM |
| HARDNESS RATING | 353.0 BRINELL STANDARD MINIMUM OVERALL AND 412.0 BRINELL STANDARD MAXIMUM OVERALL |
| HEAD DIAMETER | 19.67 MILLIMETERS MINIMUM AND 20.00 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS 6104 PART 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 10.00 MILLIMETERS |
| WIDTH ACROSS FLATS | 6.020 MILLIMETERS MINIMUM AND 6.095 MILLIMETERS MAXIMUM |
| STRENGTH GRADE DESIGNATION | 12.9 |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 23.80 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | ISO M |
| THREAD PITCH IN MILLIMETERS | 1.50 |