| FASTENER LENGTH | 40.0 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 27.48 MILLIMETERS MINIMUM AND 28.00 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 8.44 MILLIMETERS MINIMUM AND 8.80 MILLIMETERS MAXIMUM |
| HEAD STYLE | BUTTON |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM F835M, QUENCHED AND TEMPERED ALLOY STEEL AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREWS, CAP, HEX SOCKET, BUTTON HEAD (METRIC) |
| NOMINAL THREAD DIAMETER | 16.0 MILLIMETERS |
| SPECIFICATION/STANDARD DATA | 05047-ASME B18.24-2023 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | MIL-PRF-32647, HEXAVALENT CHROMIUM FREE, K16 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC NICKEL OVERALL |
| THREAD CLASS | 6G |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 40.0 MILLIMETERS NOMINAL |
| THREAD PITCH IN MILLIMETERS | 2.0 |
| THREAD SERIES DESIGNATOR | M |
| WIDTH ACROSS FLATS | 10.0 MILLIMETERS NOMINAL |