| THREAD LENGTH | 1.812 INCHES NOMINAL |
| THREAD QUANTITY PER INCH | 12 |
| THREAD SERIES DESIGNATOR | UNJF |
| EXTENDED WASHER DIAMETER | 2.450 INCHES MINIMUM AND 2.470 INCHES MAXIMUM |
| EXTENDED WASHER THICKNESS | 0.100 INCHES MINIMUM AND 0.120 INCHES MAXIMUM |
| FASTENER LENGTH | 6.217 INCHES NOMINAL |
| HEAD HEIGHT | 0.740 INCHES MINIMUM AND 0.760 INCHES MAXIMUM |
| HEAD STYLE | DOUBLE HEXAGON EXTENDED WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS5629 ASSN STD 1ST MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD DIAMETER | 1.375 INCHES |
| WIDTH BETWEEN FLATS | 1.988 INCHES MINIMUM AND 2.002 INCHES MAXIMUM |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |