| DIAMETER OF RECESSED PORTION OF SHANK | 0.190 INCHES MINIMUM AND 0.195 INCHES MAXIMUM |
| CRITICALITY CODE JUSTIFICATION | ADCS |
| LENGTH OF RECESSED PORTION OF SHANK | 0.845 INCHES NOMINAL |
| MATERIAL | STEEL |
| PLAIN SHANK DIAMETER | 0.3715 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM |
| NOMINAL THREAD SIZE | 0.250 INCHES NUT THREAD |
| NOMINAL THREAD SIZE | 0.375 INCHES STUD THREAD |
| OVERALL LENGTH | 2.150 INCHES NOMINAL |
| SPECIAL FEATURES | METALLIC HARDNESS RATING 260.0 MIN AND 360.0 MAX VICKERS HARDNESS TESTSURFACE FINISH 125 MICORINCHES SHANK 32 MICROINCHES THD |
| STYLE DESIGNATOR | RECESSED AND STEPPED |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND NUT THREAD |
| THREAD DIRECTION | RIGHT-HAND STUD THREAD |
| THREAD LENGTH | 0.580 INCHES NOMINAL STUD THREAD |
| THREAD LENGTH | 0.655 INCHES NOMINAL NUT THREAD |
| THREAD QUANTITY PER INCH | 24 STUD THREAD |
| THREAD QUANTITY PER INCH | 28 NUT THREAD |
| THREAD SERIES DESIGNATOR | UNJF NUT THREAD |
| THREAD SERIES DESIGNATOR | UNJF STUD THREAD |