| COUNTERSINK ANGLE | 90.0 DEGREES MINIMUM AND 92.0 DEGREES MAXIMUM |
| FASTENER LENGTH | 16.0 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 11.70 MILLIMETERS MINIMUM AND 13.44 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | STM F835M, QUENCHED AND TEMPERED ALLOY STEEL ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| NOMINAL THREAD DIAMETER | 6.0 MILLIMETERS |
| PART NAME ASSIGNED BY CONTROLLING AGENCY | SCREW,CAP , HEX SOCKET FLAT COUTNERSUNK HEAD CAP SCREWS |
| SPECIAL FEATURES | PLAIN END WITH SELF-LOCKING OPTION |
| WIDTH ACROSS FLATS | 4.020 MILLIMETERS MINIMUM AND 4.064 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | STMB633, TYPE II, SC 2 ASSN STD SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | ZINC OVERALL |
| THREAD CLASS | 4H6H |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 16.0 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | M |
| THREAD PITCH IN MILLIMETERS | 1.0 |