| DISTANCE FROM CENTERLINE TO FLAT | 0.240 INCHES MAXIMUM AND 0.235 INCHES MINIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.130 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.138 INCHES MINIMUM |
| CRITICALITY CODE JUSTIFICATION | AAWC |
| FASTENER LENGTH | 0.710 INCHES MINIMUM AND 0.730 INCHES MAXIMUM AND 0.720 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.2495 INCHES MAXIMUM AND 0.2465 INCHES MINIMUM |
| HEAD HEIGHT | 0.160 INCHES MAXIMUM AND 0.140 INCHES MINIMUM |
| HEAD DIAMETER | 0.560 INCHES MAXIMUM AND 0.550 INCHES MINIMUM |
| HEAD STYLE | DEE CHAMFER |
| MATERIAL DOCUMENT AND CLASSIFICATION | BS HR 601 NATIONAL STD/SPEC SINGLE MATERIAL RESPONSE |
| MATERIAL | STEEL |
| NOMINAL THREAD DIAMETER | 0.250 INCHES |
| SECOND DIAMETER FROM HEAD | 0.225 INCHES MAXIMUM AND 0.220 INCHES MINIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.500 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNJF |