| FASTENER LENGTH | 50.00 MILLIMETERS NOMINAL AND 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM |
| HEAD DIAMETER | 15.73 MILLIMETERS MINIMUM AND 16.00 MILLIMETERS MAXIMUM AND 15.73 MILLIMETERS MINIMUM AND 16.27 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 9.64 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM AND 9.64 MILLIMETERS MINIMUM AND 10.00 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT FILLISTER |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS6104 PART 1 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD DIAMETER | 10.00 MILLIMETERS |
| SPECIAL FEATURES | ALTERNATIVE HD STYLE C66,KNURLED NO. 1;STREGNTH FRADE 12.9 |
| WIDTH ACROSS FLATS | 8.025 MILLIMETERS MINIMUM AND 8.115 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | DEF-STAN 03-20 MIL STD SINGLE TREATMENT RESPONSE OVERALL |
| THREAD CLASS | 5G6G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 50.00 MILLIMETERS NOMINAL AND 49.50 MILLIMETERS MINIMUM AND 50.50 MILLIMETERS MAXIMUM |
| THREAD SERIES DESIGNATOR | ISO M |
| THREAD PITCH IN MILLIMETERS | 1.50 |