| THREAD QUANTITY PER INCH | 28 RIGHT EXTERNAL |
| THREAD SERIES DESIGNATOR | UNF LEFT EXTERNAL |
| THREAD SERIES DESIGNATOR | UNF RIGHT EXTERNAL |
| DIAMETER | 0.25 INCHES NOMINAL |
| CROSS-SECTIONAL SHAPE | ROUND |
| LEFT PROJECTION DIAMETER | 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| LEFT PROJECTION LENGTH | 0.73 INCHES NOMINAL |
| LENGTH | 1.24 INCHES NOMINAL |
| MATERIAL | STEEL COMP 4340 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.25 INCHES RIGHT EXTERNAL |
| NOMINAL THREAD SIZE | 0.25 INCHES LEFT EXTERNAL |
| RIGHT PROJECTION DIAMETER | 0.2470 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| RIGHT PROJECTION LENGTH | 0.41 INCHES NOMINAL |
| SHOULDER LENGTH | 0.10 INCHES NOMINAL |
| WIDTH ACROSS FLATS | 0.425 INCHES MINIMUM AND 0.438 INCHES MAXIMUM |
| WIDTH BETWEEN FLATS | 0.488 INCHES MINIMUM AND 0.505 INCHES MAXIMUM |
| STYLE DESIGNATOR | PROJECTION BOTH ENDS RIGHT EXTERNAL THREAD |
| THREAD CLASS | 3A LEFT EXTERNAL |
| THREAD CLASS | 3A RIGHT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND LEFT EXTERNAL |
| THREAD DIRECTION | RIGHT-HAND RIGHT EXTERNAL |
| THREAD LENGTH | 0.35 INCHES NOMINAL LEFT EXTERNAL |
| THREAD LENGTH | 0.30 INCHES NOMINAL RIGHT EXTERNAL |
| THREAD QUANTITY PER INCH | 28 LEFT EXTERNAL |