| CRITICALITY CODE JUSTIFICATION | CSYM |
| FIRST END LOCATION | THREADED END |
| FIRST END STYLE | SQUARE |
| FIRST STEP DIAMETER | 0.7480 INCHES MINIMUM AND 0.7487 INCHES MAXIMUM |
| FIRST STEP LENGTH | 4.100 INCHES NOMINAL |
| INTERNAL DRIVE STYLE | SOCKET |
| MATERIAL DOCUMENT AND CLASSIFICATION | AMS 5629 ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL CORROSION RESISTING OVERALL |
| NOMINAL THREAD SIZE | 0.250 INCHES |
| SECOND END CORNER RADIUS | 0.060 INCHES NOMINAL |
| SECOND END STYLE | RADIUS |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND STEP DIAMETER | 0.480 INCHES MINIMUM AND 0.520 INCHES MAXIMUM |
| SECOND STEP LENGTH | 1.220 INCHES NOMINAL |
| SPECIAL FEATURES | INTERNAL DRIVE HAS 0.250-28 UNF-3B THDS FOR DEPTH OF 0.910 IN. |
| WIDTH BETWEEN FLATS | 0.375 INCHES MINIMUM AND 0.379 INCHES MAXIMUM |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE FINISH | 63.0 MICROINCHES SHOULDER END |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THIRD STEP DIAMETER | 0.250 INCHES NOMINAL |
| THIRD STEP LENGTH | 0.710 INCHES MINIMUM AND 0.750 INCHES MAXIMUM |
| THREAD LENGTH | 0.600 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNF |