| THREAD SERIES DESIGNATOR | UNJF |
| NOMINAL THREAD DIAMETER | 0.2500 INCHES |
| THREAD QUANTITY PER INCH | 28 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.370 INCHES NOMINAL |
| FASTENER LENGTH | 0.543 INCHES MINIMUM AND |
| 0.573 INCHES MAXIMUM |
| MATERIAL | IRON ALLOY 660 OVERALL |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5731, 5732, 5737 OR AMS5853 AEROSPACE MATERIAL SPEC STD SINGLE MATERIAL RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | AMS2700 , METHOD 1, CLASS 4 NATIONAL STD/SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SINGLE SHEAR STRENGTH | 95000 POUNDS PER SQUARE INCH |
| HEAD STYLE | PAN |
| HEAD DIAMETER | 0.473 INCHES MINIMUM AND |
| 0.492 INCHES MAXIMUM |
| HEAD HEIGHT | 0.162 INCHES MINIMUM AND |
| 0.175 INCHES MAXIMUM |
| INTERNAL DRIVE STYLE | CRUCIFORM RIBBED |
| GRIP LENGTH | 0.178 INCHES MINIMUM AND |
| 0.198 INCHES MAXIMUM |
| GRIP DIAMETER | 0.2490 INCHES MINIMUM AND |
| 0.2495 INCHES MAXIMUM |
| SURFACE FINISH | 32.0 MICROINCHES OVERALL |
| SPECIFICATION/STANDARD DATA | 80205-NAS7800 THRU NAS7806 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD |