| BOTTOM COUNTERSINK DIAMETER | 0.0250 INCHES NOMINAL |
| COLOR | BLACK |
| COUNTERSINK ANGLE | 0.0660 RADIANS NOMINAL |
| FASTENER LENGTH | 2.2500 INCHES NOMINAL |
| HEAD HEIGHT | 0.0580 INCHES MINIMUM AND 0.0700 INCHES MAXIMUM |
| HEAD DIAMETER | 0.3060 INCHES MINIMUM |
| HEAD LENGTH | 0.1000 INCHES NOMINAL |
| HEAD STYLE | FLAT COUNTERSUNK |
| INTERNAL DRIVE STYLE | CRUCIFORM RIBBED |
| LOCKING FEATURE MATERIAL DOCUMENT AND CLASSIFICATION | NAS-51959 NATIONAL SPEC ALL MATERIAL RESPONSES |
| LOCKING FEATURE | UNDERCUT |
| MINIMUM YIELD STRENGTH | 30000 POUNDS PER SQUARE INCH |
| NOMINAL THREAD DIAMETER | 2.1500 INCHES |
| SCREW MATERIAL DOCUMENT AND CLASSIFICATION | NAS-51959 MIL SPEC ALL MATERIAL RESPONSES |
| SCREW MATERIAL | STEEL CORROSION RESISTING |
| SCREW SURFACE TREATMENT | OXIDE |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 2.1500 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |