| DISTANCE FROM HEAD LARGEST BEARING SURFACE TO SHANK HOLE CENTER | 2.920 INCHES NOMINAL FIRST HOLE |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF SECOND DIAMETER | 0.297 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF THIRD DIAMETER | 2.540 INCHES NOMINAL |
| DISTANCE FROM LARGEST BEARING SURFACE OF HEAD TO END OF FIRST DIAMETER | 0.141 INCHES NOMINAL |
| EXTERNALLY RELIEVED BODY DIAMETER QUANTITY | 3 |
| FASTENER LENGTH | 3.090 INCHES NOMINAL |
| FIRST DIAMETER FROM HEAD | 0.438 INCHES NOMINAL |
| HEAD HEIGHT | 0.250 INCHES NOMINAL |
| HEAD STYLE | HEXAGON |
| MATERIAL | STEEL COMP 2330 OVERALL |
| NOMINAL THREAD DIAMETER | 0.438 INCHES |
| SECOND DIAMETER FROM HEAD | 0.342 INCHES NOMINAL |
| SHANK UNTHREADED HOLE DIAMETER | 0.108 INCHES NOMINAL FIRST HOLE |
| SPECIAL FEATURES | COTTERPIN HOLES 90.0 DEG APART |
| WIDTH BETWEEN FLATS | 0.625 INCHES NOMINAL |
| SURFACE TREATMENT | CADMIUM OVERALL |
| THIRD DIAMETER FROM HEAD | 0.438 INCHES NOMINAL |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | 0.550 INCHES MINIMUM |
| THREAD QUANTITY PER INCH | 20 |
| THREAD SERIES DESIGNATOR | UNF |