| DISTANCE FROM CENTERLINE OF HOLE TO END OF PIN | 0.190 INCHES NOMINAL |
| FIRST END LOCATION | OPPOSITE GROOVED END |
| FIRST END STYLE | CHAMFERED |
| FIRST END TAPER LENGTH | 0.060 INCHES NOMINAL |
| FIRST HOLE DIAMETER | 0.1247 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM |
| FIRST STEP LENGTH | 0.620 INCHES NOMINAL |
| FIRST STEP DIAMETER | 0.373 INCHES MINIMUM AND 0.374 INCHES MAXIMUM |
| HARDNESS RATING | 38.0 ROCKWELL C MINIMUM AND 42.0 ROCKWELL C MAXIMUM OVERALL |
| HOLE ARRANGEMENT STYLE | ONE END DRILLED |
| MATERIAL | STEEL COMP 4130 OR STEEL COMP 4142 OVERALL |
| NOMINAL THREAD SIZE | 0.312 INCHES |
| SECOND END OUTER RADIUS | 0.151 INCHES MINIMUM AND 0.161 INCHES MAXIMUM |
| SECOND END RELATIONSHIP WITH FIRST END | NOT IDENTICAL |
| SECOND END STYLE | OVAL |
| SECOND STEP DIAMETER | 0.3125 INCHES NOMINAL |
| SECOND STEP LENGTH | 1.690 INCHES NOMINAL |
| SPECIAL FEATURES | THREADS ARE ON THE SECOND STEP AND GROOVE IS LOCATED ON THE THIRD STEP |
| STYLE DESIGNATOR | SHOULDER |
| THIRD STEP DIAMETER | 0.214 INCHES MINIMUM AND 0.224 INCHES MAXIMUM |
| THIRD STEP LENGTH | 0.440 INCHES NOMINAL |
| THREAD CLASS | 2A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 1.690 INCHES NOMINAL |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL COARSE (UNC) |