| FIRST END STYLE | SQUARE |
| FIRST END LOCATION | SHORT SHANK END |
| HARDNESS RATING | 55.0 ROCKWELL C MINIMUM AND 59.0 ROCKWELL C MAXIMUM OVERALL |
| OVERALL LENGTH | 2.050 INCHES NOMINAL |
| MATERIAL DOCUMENT AND CLASSIFICATION | QQ-S-763,COND A FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| MATERIAL | STEEL COMP 440C OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END STYLE | CHAMFERED |
| SECOND END TIP RADIUS | 0.060 INCHES MINIMUM AND 0.090 INCHES MAXIMUM |
| SECOND SHANK DIAMETER | 0.3121 INCHES MINIMUM AND 0.3126 INCHES MAXIMUM |
| SECOND SHANK LENGTH | 0.670 INCHES NOMINAL |
| SHANK DIAMETER | 0.2490 INCHES MINIMUM AND 0.2495 INCHES MAXIMUM |
| SHANK LENGTH | 1.255 INCHES NOMINAL |
| SHOULDER WIDTH ACROSS FLATS | 0.625 INCHES NOMINAL |
| SPECIAL FEATURES | TWO SYMMETRICAL FLATS ON LONG SHANK |
| STYLE DESIGNATOR | SHOULDER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | SPS 03301,CAGEC 12464 MFR REF SINGLE TREATMENT RESPONSE OVERALL |
| SURFACE TREATMENT | PASSIVATE OVERALL |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD CLASS | 2A |
| THREAD LENGTH | 0.370 INCHES MINIMUM AND 0.450 INCHES MAXIMUM |
| THREAD SERIES DESIGNATOR | UNF |