| EXTERNAL THREAD TOLERANCE CLASS | 4H6H |
| FASTENER LENGTH | 20.0 MILLIMETERS NOMINAL |
| HEAD DIAMETER | 5.3 MILLIMETERS MINIMUM AND 5.5 MILLIMETERS MAXIMUM |
| HEAD HEIGHT | 2.8 MILLIMETERS MINIMUM AND 3.0 MILLIMETERS MAXIMUM |
| HEAD STYLE | FLAT CHAMFER |
| HOLE CONFIGURATION STYLE | ROUND INTERNAL HEXAGON |
| HOLE DIAMETER | 1.00 MILLIMETERS MINIMUM AND 1.14 MILLIMETERS MAXIMUM |
| HOLE QUANTITY | 2 |
| HOLE TYPE | DRILLED |
| INTERNAL DRIVE STYLE | HEXAGON |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5731 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5732 ASSN STD SINGLE MATERIAL RESPONSE OR AMS5737 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | IRON ALLOY 660 OVERALL |
| NOMINAL THREAD DIAMETER | 3.0 MILLIMETERS |
| WIDTH ACROSS FLATS | 2.52 MILLIMETERS MINIMUM AND 2.56 MILLIMETERS MAXIMUM |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 20.0 MILLIMETERS NOMINAL |
| THREAD SERIES DESIGNATOR | MJ |
| THREAD PITCH IN MILLIMETERS | 0.5 |