| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.312 INCHES |
| THREAD QUANTITY PER INCH | 24 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.445 INCHES NOMINAL |
| FASTENER LENGTH | 1.890 INCHES MINIMUM AND |
| 1.910 INCHES MAXIMUM |
| MATERIAL | NICKEL OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | PWA92 FSCM 77445 MFR REF SINGLE MATERIAL RESPONSE OVERALL |
| FIRST DIAMETER FROM HEAD | 0.335 INCHES MINIMUM AND |
| 0.336 INCHES MAXIMUM |
| SECOND DIAMETER FROM HEAD | 0.247 INCHES MINIMUM AND |
| 0.251 INCHES MAXIMUM |
| THIRD DIAMETER FROM HEAD | 0.318 INCHES MINIMUM AND |
| 0.322 INCHES MAXIMUM |
| FOURTH DIAMETER FROM HEAD | 0.247 INCHES MINIMUM AND |
| 0.251 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.515 INCHES MINIMUM AND |
| 0.525 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 1.050 INCHES MINIMUM AND |
| 1.070 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 1.135 INCHES MINIMUM AND |
| 1.155 INCHES MAXIMUM |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FOURTH DIAMETER | 1.445 INCHES MINIMUM AND |
| 1.465 INCHES MAXIMUM |
| THE MANUFACTURERS DATA | |
| MANUFACTURERS CODE | 77445 |
| DESIGN CONTROL REFERENCE | 4048153 |