| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.310 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNC |
| FIRST END COUNTERBORE DEPTH | 0.310 INCHES NOMINAL |
| FIRST END COUNTERBORE DIAMETER | 0.138 INCHES NOMINAL |
| FIRST END LOCATION | SHOULDER END |
| FIRST END STYLE | COUNTERBORED W/O THRU HOLE |
| FIRST STEP DIAMETER | 0.390 INCHES NOMINAL |
| FIRST STEP LENGTH | 0.140 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | ASTM A582 COND A ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 303 OVERALL |
| PROPRIETARY CHARACTERISTICS | PACS |
| NOMINAL THREAD SIZE | 0.138 INCHES |
| SECOND END STYLE | SQUARE |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND STEP DIAMETER | 0.222 INCHES NOMINAL |
| SECOND STEP LENGTH | 0.286 INCHES NOMINAL |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE FINISH | 32.0 MICROINCHES LONG SHANK |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-35 FED SPEC SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THIRD STEP DIAMETER | 0.1869 INCHES MINIMUM AND 0.1871 INCHES MAXIMUM |
| THIRD STEP LENGTH | 1.704 INCHES MINIMUM AND 1.711 INCHES MAXIMUM |
| THREAD CLASS | 2B |